Need advice ASAP

So my boyfriend and I watch porn on our own separate terms(me more than him) and I’ve always been like super open with it, but I’ve always wanted to at least know. I’ve never been the type to actually care if he watches porn or not because I don’t want to be a hypocrite. This morning on the other hand, he was showing me something on his phone and he went to safari and a video popped up from pornhub. I went kinda quiet and he instantly started apologizing and telling me he didn’t get off to it, he just watched it and that he wasn’t going to tell me because he just watched it and didn’t do anything. I have been pretty upset all afternoon about it because all I wanted him to do was tell me. I don’t really know what to do or what to say, can y’all help me or just give me advice on what to do?