Boyfriend

So I’ve posted about this months ago, but it’s something that I’ve still been trying to work through in my relationship. A couple months ago while using my boyfriends phone, since I forgot mine, I saw that he’d been searching up multiple different girls on Instagram. Most of them were girls who went to school with him/graduated before him. I confronted him about it and we talked and he said it was out of curiosity and seeing what they’re doing in their lives. Now flash forward a couple months later and it comes up again, but now I’ve learned that the purpose of him looking at them was to masturbate. Now I do not care at ALL if he masturbates or watches porn, but it really hit me when I found out he was doing it to people he knows and considers himself friends and has hung out with. Even girls that I have met before and have hung out with.

I really need advice on what’s the best way to get through/over this. I really don’t know how to feel like I’m sexy or pretty enough for him. I just don’t know how to get over the fact he chose to do it to people he knows and I know.