I'm 23 (Female), he's 22. We have been dating for about two years. We are both in grad school (law school/MBA, respectively) now, and met in undergrad. He had a girlfriend in high school and during early years of college. I don't know a ton about her or their relationship.  it's just he once told me that he lost contact with her and they don't talk at all.  Anyway, I have recently (I'd say past few months or so) noticed that he has been not only liking and commenting on her IG and Facebook posts (which everyone does and I don't think is that big of a deal in theory) — but the part that is more of a big deal to me is that he's also been sharing some of her Facebook posts on HIS profile. context: Many of her Facebook posts are of her singing and performing because she is in musical theatre/performing arts at the school she's at. Recently he shared one and said "So talented, miss you!" --which is nice but kind of weird.. why does he have to share that?  She does  auditions and stuff and is talented! But it is kind of bothersome to me when my BF posts and likes/comments on her posts but sometimes will "not see " my posts. I'm admitting it makes me kind of jealous-- but mostly just bothered and weirded out a little bit. I get she's talented. I see/hear her perform, act, sing in these videos, but it's just weird to me-- why does he have to SHARE them? Should I talk to him about it? Am I just overreacting?? 