You are still young.  You’ve not had many if any serious relationships.  So you are standing in judgement of something you’ve not experienced and really know little about.

That said, No one truly knows what goes on in someone else’s relationship.  On top of it, you haven’t even, it seems, talked to your father about any concerns you have.

Frankly, I think you should continue to see your dad.  Learn a bit about life, and not be so judgemental.  Regardless, your parents relationship is ultimately none of your business.

 If you were here because either of your parents were abusive, it’d be different.  But you’ve jumped to a conclusion and now just want to be cruel.

 It suggests you aren’t as mature as you think, and have some real growing up to do.

In my opinion of course.

It's fine to be angry at your father, but cutting him out of your life is extreme. Does your mother expect you to take her side and be angry at him because he had an affair? Does she act sad and upset about it? Does she give you the feeling that she doesn't want you to see your dad?  If so, all of that is inappropriate.

As Aunt Agatha said, you don't really know what went on between him and your mom (and if you do because your mother is telling you, that's a problem too).  Kids in a divorce shouldn't feel they have to take sides.

Give your father a chance.  At least here in the US, a 15 yo doesn't get to decide where he lives - are you allowed to make that decision?

"Most likely" his mistress based on what?

You seem to be having an extreme reaction to something when you aren't even certain of the facts.

I think 15 years old is too young to make a drastic decision such as this. I am dealing with my SD who chooses the "cooler, more relaxed, less expectations home" over a home that will hold her accountable. While it seems like it would be "cool" be be living with your mom and "bro", remember visiting and living with them are two different things, your "bro" of a Stepfather may not be so Bro like when he needs to take a parenting role, and I imagine with overseas parenting from your BF this would happen.

You are angry with your father for being with a woman you believe or think destroyed your parents marriage, I can understand that but remember a marriage is a very complex thing that children rarely get a clear understanding of or know both sides. I would recommend that you try to have some understanding with this and don't blame your stemother for something she obviously didn't do on her own, if in fact they were having an affair prior to your parents marriage desolving. Grown-Up relationships are not easy.

You certainly have a right to remove any people (DNA be damned) whose life decisions grossly offend you.  But you also may choose to allow some back in later if things change.

When someone cheats they not only betray their spouse they also hurt other family members.  

No offense, but Do your dad and his new wife a favor and STAY AWAY from them. Do everything you can to stay away from them. Move out of the country with your mom and her man (you have a huge double standard going on) and live happily ever after and let your father enjoy his life instead of trying to make him "pay" for something that you probably don't know the whole story about.......Go cry to your mom and I'm sure you will get your way. You are 15 and should have some say. Good luck.

So you don't even know for sure that she was his mistress? Honestly, even if she was, usually when someone has an affair there are a LOT more issues going on where divorce would happen eventually with or without the affair.

It sucks that your parents don't live closer together but I think this is a huge decision for you to be making at such a young age. Do you have an adult in your life besides your parents that you can speak to about this (uncle/aunt, teacher, coach)?

Both your parents seem to be moving on from their marriage at the same exact pace (except your mom has up and moved acrossed the world). 

I will ask again: why do you believe your dad cheated?

You're making a lot of assumptions. Why assume your dad cheated? You're 15. Youre a kid and I dont think you should completely cut your dad out.

People make mistakes. My parents are divorced and I've forgiven them and moved on with my life. I'm still close to both of them.

You do yourself more harm by alienating yourself from him when there's been no reason to alienate yourself.

That's fine if you want to live with Mom doesn't mean you need to forget about Dad.

1) how is it your business who your parents date? Your dad's goal as a parent is to get you ready to be out on your own, not to be lonely doing it.

2) you won't tolerate the girls? Ok? They also don't have to tolerate you. You do have to respect that she is the woman your father has chosen... would you cut a bro out of your life because he's dating some ho you can't stand? Come on.

3) you don't get to choose your parents. If you want nothing from your dad, then perhaps your dad should stop giving your mom money to take care if you... he should stop spending money on you..no more gifts..no paid education...no car...nothing. you can't decide to cut him out of your life, then turn around and use him as an atm. What happens if stepdad leaves and mom gets another dude you don't like so much? Gonna cut her off too? 

4)sounds like you want everyone centered on You, like you don't want anyone else to have their own life, that you want everyone all to yourself. News flash kid... you don't get to dictate who people around you have in their life. Not now, not ever. You can't tell your friends who to be friends with...can't tell your friends who to date... can't tell your friends how to live their lives just because you feel it's not centered around you.

The sooner you face the reality that you ain't King St!t of the universe, the happier you will be.

A 15 year old wanting to cut his dad out if his life because his dad loves someone other than the kids mom...what's next...kid goes to a house party and stops being friends with someone because they invited someone the kid doesn't approve of? 

Please.

Life happens. Your mom wasn't the woman for your dad...if she was, he'd have stayed with her. Other people's relationships are none of your business.... even if its your parents. Their goal in life is not to seek a child's approval. Grow up and move on.

You asked for honesty... 

it’s right that you don’t know the facts. Your parents may never tell you the full truth because a) you are too young right now and b) you parents don’t have to tell you everything about their private life. Are you going to tell your mum everything if and when you are married. As we get older we establish personal boundaries and our relationships change. Whether we like it or not. Your father may be taking it on the chin as it were and maybe trying to protect you. I’m sure he only has your best interests at heart. We are all allowed to live our lives without anyone telling us what to do when we are fully fledged adults. What are you going to do if you fall madly in love with a woman and one of your parents tries to tell you not to date her. Would it be your life? Or would you not date her? 

You get a lot of credit for at least trying to come on here though. I wish my step kids would come on here and ask for advice.

Half of all marriages end in divorce.  Divorces take time, often years, and very often people begin relationships before the divorce is final.  When you become an adult and marry, it is very likely that you will have this occur in your life.  You may not think so now.  It is very easy to be idealistic at 15 when you have had absolutely no experience in how real relationships work.  But remember how you have chosen to treat your father.  You may realize one day how much of an apology you owe him.

I get being upset with your dad for something bad he did. I was the same age when my dad did something bad. He was upset that I was mad at him and that it was "none of my business" but I told him when it affected the whole family it was my business. It wasn't pretty.

A few years later my brother was 20 when he had a falling out with our dad and cut him out of his life.

I did not cut my father out of my life. I stayed in touch and though he may not have ever realized it, I kept it a bit more formal and watched him since there was a level at which I did not trust him. But he was still my father. He became a better person and we are close.

My brother has seen my dad once in 25+ years and only by circumstance since it was an event related to my family/son. There was no animosity but it was very awkward and tense and formal. And my brother's children have only met their grandfather that one time (and they don't have another one since my SILs dad died when she was young). So they haven't had the benefit of a grandpa.

From one "kid who had a shitty dad" to another: don't cut him out of your life. It will probably be difficult and uneasy for a while, but keep in touch. it's very logical to say it would be better for you to stay all school year with your mom and visit for a month in the summer, or two separate weeks in the year. And you have, what three years/times of doing this? That's not much across your entire lifetime.

Once you are out on your own, kids typically don't visit as often so a few phone calls and a once a year visit would be the norm especially with him overseas. You will be able to have a decent relationship even if it's not close.

I'm really sorry you are going through all this. It's a ton of change for anybody to absorb.  

I get you are mad at your dad. And I'd recommend keeping those lines of communication open.  It's okay to tell him how you feel and why you feel that way.  He's your dad, he loves you. And he probably misses you like crazy.  

My opinion on cheating is that it usually happens for a reason. I'm not saying it's okay or the right thing to do ever but there is usually more to the story rather than one person sneaking around on the other in a seemingly happy relationship. The fact that your mom is in another relationship already that's fairly serious makes me think that she was not that attached to the relationship to begin with although she may have been hurt by the cheating.

I grew up in a very unhappy family environment. My parents both made a big deal about staying together for the kids. They thought it was what was best for us and I don't hold it against them but I remember thinking many many times that I would much rather see them happy with somebody else.

I agree with the majority of people here that I understand why you're upset but I think that you are young and likely don't have all the facts or the maturity to truly understand the situation. I would recommend keeping in touch with your dad, making an effort to get to know his wife, and getting into therapy to help deal with the emotions you're feeling.

him with her ex high school sweetheart. She married the ex high school sweetheart barely after a week the divorce was finalised and the ex high school sweetheart left his wife to marry my husbands exwife.

did any of my husbands 3 kids call their stepsiblings dad a whore? Of course not. Did they call their mum a cheater? Of course not. Part of being a mature individual is accepting people make choices, poor ones at times and thats their choice.... 

whatever crap adults do i do not condone telling their children about stuff like them cheating, having affairs etc... that is between the 2 adult partners to deal with. Bringing their kids into these issues is a manipulative tactic to guilt people, shame them etc. If they don’t want to admit it so be it but seriously, it would be pretty obvious if someone was with a married person isn’t it. 

As a 15 yr old in the eyes of the law, you are not old enough to make these adult decisions so you don’t get to demand and choose who your go to live with.  Also a potential stepdad or your stepdad is not your bro, he is a parent figure which makes me think this stepdad has come across as the “we’re mates type” while your dad has firmly told you your place in his life and a court order exists saying you have to live with him at times.

when you are an adult, you can make whatever decision you want but that means bugger all if you have done nothing to make yourself independent. Have you thought how you will afford a place to live, food, what job you will have, further education or are you hoping your mum will provide a home indefinitely 

also its selfish of you to demand that your parents should have no more kids with their current partners or spouses. Thats not your place just as its not your place to have your parent how many and if you can have kids etc.. parents do not ever need permission and blessings from their kids to have more kids. If they can care and provide for them thats great but never should they need to run this by you. Thats a very selfish narcissistic thing to do 

Your SM is really lucky and finally, your farther too. He will grieve a bit now but he will be able to build a new, healthy family. It is best for everyone: you, your mom, farther and of course the stepmom. Excellent choice, I would love  my husband’s kid acting the same way

I have a hard time telling anybody to leave Europe and move to the US, let alone Texas.  Austin maybe, but even then...

Our president is a piece of garbage and Texas is an alternate universe.

I'm not a fan of home-wrecking twats, but Jesus. Texas?  If you've enjoyed the things that living in Europe has to offer, I don't think you'll like it.  You seem pretty educated and well spoken.

I live in Utah and I have to constantly tell myself at least that's not Texas.

You are a very mature and thoughtful young man considering what you have experienced.   

Though I am not a COD (Child Of Divorce) I believe strongly that adultery is as much disloyalty and betrayal  toward children as it is toward a spouse and I completely understand the position you are taking as well as  your opinion of your characterless father and his whore of a new wife.

My XW was an adulterous whore so I understand the pain of betrayal that you and your mother are feeling at the hands of your father and his cheat partner.  My SS-26's BioDad cheated on his mom (my wife) and spawned 3 more also out of wedlock children by two more baby mamas.  We spent decades confronting the characterless crap and manipulation that the Spermidiot and SpermClan targeted at my SS.  We commited to protecting him from the manipulations of his father and the rest of the SpermClan.

Live your life young man.  Protect yourself as much as you can, take the lessons you are observing and make your life one that avoids the mistakes that the adults in your life are making.   It appears that your mom has chosen to move on and make a life with a good man.  That is a blessing that will pay large dividends for you and your mom and also your StepDad in the long run.

I am hopeful that you and your father can figure out how to have a relationship that works for both of you.  If your dad has children with your SM I also hope that you can accept them as your siblings.  They will be as much victims of the travesty your father has initiated as you are.

Welcome to the USA young man.  You will love Texas.  A state where once you reach adulthood you can do as you wish with minimal interferance by government or anyone else.  We need more immigrants like you and your mom.  People who come for the opportunity to make what they want of themselves.  Your SF is a military veteran and a Doctor.  You would serve yourself well to emulate his example and seek his counsel.

Good luck and take care of  you.