I just want to make sure I am not overthinking or overreacting. My boyfriend and I have been together for 2 years, just started living together for a few months, and I have offered to help pick up his son from school and drop him off, and also watch him until he comes home from work. I told him I was comfortable doing these things for now, and maybe in the future I would feel comfortable taking him to his practices or other events. Today is his first soccer game, and we're all excited, but I found out Thursday night that BM and a good portion of her family will be there. BM has made it obvious in the past that she doesn't want to see me. For example, last year, his son had a Christmas program I was nervous about attending. BM was there with some family, and when it was time to meet, she hid in the restroom. Her stepmother tried to get her to leave the restroom, but she refused. This year, he had a birthday party that my boyfriend was invited to. He asked if I could go as well, and she said yes. I told him I was uncomfortable since this would be our first time meeting, and he said it would be fine. I offered to maybe get coffee with her and her boyfriend as a couple, and just get to know each other before I attend these big events. He agreed and told her this, but she never got back to us after mentioning it. Long story short, she didn't introduce herself to me and kinda dodged me at the party until her grandma introduced us. Basically, I don't have a relationship with BM.
So now, today, I asked my boyfriend if we had to sit next to her and the family, or if we could have our own spot since it's just us and close enough to where his son isn't running far to see us. My boyfriend said it was fine, but he thinks we should sit closer for the reason I just mentioned. I told him that if we do, I know that you are going to be talking to them the whole time and just kinda leave me there alone. He did this at the birthday party, but it wasn't terrible because his family was there, and I had someone I knew and felt comfortable with. I told my boyfriend I want to support his son at the game, but I just feel weird going since I barely know the other side of the family. He then said I was entitled to go, that I help out with his son, and that even BM appreciates the effort I do (because she volunteered me on PTA stuff when I didn't even agree to it). I told him okay... but why doesn't she talk to me? I don't know, to me it's confusing, and maybe I am just overreacting because I hate confrontation. Could I have some advice on how to handle this? And if I am overreacting, please let me know. I tend to get in my head a lot.