I have been engaged for several months and been with my fiance for a couple of years. She has a daughter that is amazing. Super smart, fun to be around, loving, etc. She is a little spoiled, but nothing out of the ordinary for a 12 year old. I have three boys(16, 8, 6) and this marriage will be a blended family situation. This has bever been an issue. All the kids get along VERY well. The other day my stepdaughter (to be) asked if my two little ones could spend the night. The little ones adore her and she has always adored them. I agreed as did my fiance. They spent the night and i went to pick the kids up the next morning. My fiance had to work. My fiance currently lives at her parents while renovations are being done at the home we will live in. When i went to get the boys, they were swimming with the step daughter. Everyone was having fun. At one point step daughter asked if we could all go to world market to look around and go to a movie she wanted to watch. The boys groaned at the thought of seeing that movie. I told her we would probably do something in the afternoon when her mother got off work. She pleaded that she didn't want to wait and she wanted to go to world market now and then she wanted me to take them to american eagle because there were a few outfits she wanted me to buy her. At this point i told her we weren't going shopping because i know the little ones wouldn't want to do that. I said we may go to world market and do something else when her mother was able to leave work. Step daughter seemed to get angry and said she wasn't going to swim with the boys anymore. The boys said they were done swimming anyway. They changed and started playing around the house. All of them were running around playing and wrestling and playing hide n go seek. Eventually step daughter said the boys were aggrivating her because they kept smacking her leg and running to hide. I got onto the boys and told them to stop. All of the kids then started playing with balloons. Eventually step daughter started smacking the boys' legs and running to hide again. This game continued for a little while again until she complained to me about the boys aggrivating her again. I told the boys to stop again then decided to take the boys and leave until fiance got off work (i realised the kids were getting on each others nerves). We left and came back when fiance got home from work. We went to world market and then went back to the house. Kids had had several hour break from each other before we went to world market. They got along great at world market. After getting home the little ones wanted to play hide n seek again. Which they did fine. Then step daughter sat on couch to take a break. My little one (6 y.o.) smacked step daughter's leg again and ran to hide. She chased him down the hall(Both were laughing). After a minute or two i noticed how quiet they were being so i went to check on them. I found my son on the floor with step daughter sitting directly behind him with her legs wrapped around his waist and her arms around his neck. It looked like a "rear choke hold" like in Mixed martial arts which step daughter did classes for in past. She was not actively choking him. She just would not let him up. Before i saw this i listened at the door and she was telling him that he needed to promise to always do what she said when she said it or she would not let him up. At this point i went in and saw what was going on and told her to let him up. She refused and said she would let him up when he promised her something. It took two more firm requests before she let him get up. My son ran into another room to hide. I followed to check on him. He said she had choked him and hurt his feelings. The evening went on for a bit longer with a couple of other things that happened and we left to go home. Fiance called me the next morning and said step daughter had pitched a fit that night and said she was acting out of sorts and even looked "posessed" at one point. At this time i told her about the pool conversation and the holding down my son incident. Fiance could not believe step daughter asked me to buy her clothes. I wondered why THAT was her main issue with all of it. I would be more concerned about a 12 y.o. holding down a small 6 y.o. like that. Over the past week i have been asked to retell my side of the events probably 10 times by fiance and her ex husband. I have gladly done that. Then i find out ex husband (who i have always gotten along well with and whom seems to like me a lot) has been saying i probably just embellished these events to make them sound worse than they were. Step daughter claims i am lying about her saying the american eagle thing and that she only straddled my son and held his arms down. She claims she never choked him or anything. Now fiance has been seeming to try to catch me telling her other "half truths" to vindicate the situation with step daughter. It's as if she doesn't believe me and she wants me to lie about something else so she can believe her daughter about the other stuff. She claims her daughter HAS NEVER lied to her and that her daughter refuses to come clean and still claims i am lying. So fiance and ex husband don't know what to think and don't want to get onto step daughter in case i am the one lying. I absolutely HATE lying and am very honest in every situation because of that. I would rather tell the truth and look like a bad person than lie to someone. Fiance tells me she knows i have no reason to lie about any of this, but she doesn't know why her daughter would lie either. Step daughter's story has clear holes in it when she gives her version. Step daughter claims my son made her mad, but can't say exactly what he did to make her mad enough to choke him or hold him down in her version. She also says she "doesn't remember" if she did or didn't say anything about me buying her stuff from american eagle. She says she may have but can't remember. I am baffled that with all of this, i am still being treated as if i made all of this up. I have absolutely nothing to gain from lying about any of this. I also love my step daughter dearly and would NEVER want anyone to think bad of her. I am not sure what to do. It bothers me greatly that there is this much distrust in me and my fiance and i are planning a wedding in less than two weeks. Any insight would be greatly appreciated. I am just feeling lost in all of this.