No she does not and I would assume would not have feelings towards him. I understand your one time deal but that is the prob, if it is ok to do this once then it will be expected to be ok to do it again and again and again. I am not living a life where my girl leaves me at home and is out with her ex and kid doing family stuff. If that is the case get back tog then. School functions and sports it is all good. but to start spending time tog outside of that is inappropriate. This guy is such a problem that I had to do the kid exchange for her twice a week for over six months so she wouldnt have to deal with him causing problems, in fact it has to be done at a police station because he is such a problem. Back to the point, her and i tog for 3 years here in February so anything further is a long life together and no way am i going to be in a position where I am left behind and she is out with him outside of school or social events. It is inappropriate and her herself said that she would be beside herself if I went with my sons mom and did the same thing leaving her behind. There are boundaries in all relationships and with kids involved there are adjusted ones as well. When I say this is the most controlling jealous girl I have ever dated I am not just saying that or projecting like people like to run to. I always accepted her faults because of the way this guy cheated on her when she was pregnant and after, hell she caught him with the baby at another girls home, the girl he is still with. So it is not a matter of trust it is a matter of respect. I am not going to be a family with a girl who is out being a family with her ex so to speak. hope this makes sense. oh and i have never asked to be put ahead of her kid i am a single parent my son is 17 and i know how it goes, i have never one time given her a hard time because we couldnt do something because she had her kid, I have always adjusted around it, hell I like kids and have no problem with them. Like i said though all about respect and valuing the boundaries.It looks like I'm in the minority here, but I think you way overreacted. Has she ever done anything else that would imply she perhaps still has feelings for this guy? I hate to break it to you, but you will always be #2 to her son. It's not a bad thing for the child to see both his mother and father can hang out with him together in a civil manner. In fact, what she did was healthy. If it becomes a habit, that's a problem. But right now, I personally think you're acting like a child about it.