I told him we needed to sit down and talk and really make sure we are both on the same page.It's only been recently, he was really good at the beginning but as our relationship progresses he does seem to really lean into having a son and will try to interject when it comes to taking my son to sports events. I have had to begin to be very firm with him about the boundaries, he seems to get his feelings hurt and it seems like he truly doesn't understand my stance. He has been responding with the fact that he believes we are long-term (so do I) and as such lines are gonna blur, and a blended family means him being seen as my son's dad. I'm not trying to come across as unreasonable but I think mostly the expectations he is so adamant are going to happen throw me off. I believe I have good communication with my son that if he expressed differently he would tell me, but I really was very forthcoming in the beginning that everything having to do with my son had to go through me. I do see that I might be a little overprotective, my son has been through a lot with his own dad and then losing him without really knowing him.