Boyfriend and Social Media 🤨🧐

I don’t know if I should be worried or what but my boyfriend has a tumblr and recently I was on his laptop about to fill out job applications,when I open up the browser his tumblr page was up so I just was scrolling down his timeline and I went farther and was looking at the pics and videos he might have liked and it was a lot of naked women with very nice bodies and looking at that made me feel some type of way and also just now a number was calling for me on his phone and he was telling me hey somebody is calling for you but I didn’t pick it up in time and they hung up and he the screen went to what he was on which was his tumblr page and he was on some girl page looking at ass cheeks 😒 should I say something or just let it go?