Stepson (11) is inconsiderate, ungrateful, selfish, manipulative jerk. My daughter (5) is not always the sweetest little sister but he makes me feel as he dislikes her more than not. Always making comments like its better when she's spending night at Grandmas or Great grandmas. He gets rough with her. Doesn't heed the talks of big brother protects little sister. He stoops to her level.
He has irked me for about the whole time me and my fiancé have been together. He's a whiny spoiled brat. I've done everything to try to give him what ever he wants and include him in my activities fishing, taking him to the gym, but no responsibility or accountability or maturity is shown.
My fiancé has now been battling Stage 4 ovarian cancer for 4-5 yrs. Our relationship was getting a little rocky before the diagnoses but I felt like for my daughter I can make it work.
She pushed it on him to call me dad(I didn't want that cause I never called my step dad that). He never did. He did refer to me as his dad when talking about me to friends. At times he could be sweet but He's not a genuine kid.
It has got physical with the kid a few times over the past few years not punches or face hitting just grappling type stuff. He is now 11yrs old almost 200lbs and when he gets angry he really thinks he is tough. He's so unhealthy, clumsy, lazy, greedy and lies about the all things.
This Christmas (he got the new ps5) an incident with my daughter called for me to try to take his cell phone (Not a gift) away because of attitude he gave when we called for him to ask a question.
He tries shutting door in my face, I grab the cell out his right hand and he hits me in the face with the bottom of his left fist.
FOR THE FIRST TIME I SHOWED RESTRAINT. I walked away tell his mom what just happened. She digs into him a bit (verbally) and he says I hurt his finger when I took the phone away. Then an hour later he changes it to It was an accident he didnt mean to hit me.

The incident took place at the gr. grandmas since we are getting A kitchen remodel. The grandma says to me we all need to talk. I bluntly say There is nothing to talk about. He doesn't respect us. You were not there you don't need to discuss anything. She says there is more to it. I said no he thinks he can do whatever cause there is no consequences. I clearly told him after the incident I will not risk losing my daughter and my job (Correctional Officer) just to beat his ass.
So my fiancée gets upset with her family saying there is too many hands in the pot. He is getting mixed signals.
The icing on the cake. My fiancée will not respect my wish of taking the OLD Ps4 (Not the new gift) away. I want punishment from all electronics. She says since we are not home there is nothing for him to do. He literally is getting away with it. I refuse to help him with anything involving these video games, I will not be putting his cell service on anymore. I am done. He said this morning look what I unlocked on my game I told him that is the last thing I wanna see. Fix them grades D'S AND F'S.
I tell my fiancée I love her everyday, but if I despise her 1st born is that genuine love? I would not be with someone who dislikes my daughter. Everyone is always giving me respect and praising me for staying with her during her sickness but I feel terrible because I don't like her son. I told her reluctantly when she passes I would take him in but I have had a change of heart 100%.