Cross post from r/datingadvice. I was told I might get better advice on this forum.

. To give a little bit of a background my boyfriend (26m) and I (21f) have been dating a little over a year. Last night while we were cuddling he was on his phone and I happened to look over and see him scrolling through his photos. I noticed there’s a bunch of pictures of other girls on his phone, particularly ones with their butts or part of their boobs showing. Granted these are old photos but they still made me uncomfortable. When I brought it up to him he told me that it was memes and to forget about it (it clearly wasn’t because the photo he clicked on was from bumble) and asked if I had any favorite porn videos saved on my phone. I don’t, and his comment made me think that maybe he’s using other girl’s pictures for material. He then made the comment, “can’t you just make it even and have pics of guys on your phone?” I told him no, for me that’s extremely uncomfortable and I don’t think respectful to the person I’m dating. He told me he would think about deleting them but I’m not sure if he actually will. I’m pretty laid back when it comes to him watching porn and I get that he’s going to find other women attractive, it still bothers me that he has other pictures of girls on his phone and possibly jerking off to them. I’ve been cheated of before (with a different person) and (stupidly) stayed in the relationship... didn’t end well. My knee jerk reaction was that he’s possibly cheating or going to cheat. I’m just trying to figure out if I’m overthinking things and overreacting and should just let it go or if it’s something I need to clarify with him.