I found pictures of my boyfriends (26M) ex girlfriend in his wallet

r/

Tl;Dr my boyfriend is still hung up on his ex from three years ago.

My boyfriend (26M) and I (23F) have been dating for the past 4 months. His long term girlfriend broke up with him about three years ago. He still has a picture of them as his Facebook cover photo and although he only has a few pictures on Instagram one of them is of them two. I looked in his wallet today and found three polaroid pictures of them together. I really like this guy and I don’t want to seem crazy but it’s just not sitting right with me. I guess he could’ve forgotten those pictures were in there but as for the social media photos I did once bring up why that was still his cover photo and he claimed he “doesn’t really use Facebook” which is fine but he also didn’t change it. Am I overreacting or is this weird? I would’ve thought after three years those things would be gone by now. Is he going to be hung up on his ex forever more?