What should I do?

My boyfriend came over super drunk and I already have had suspicions he’s cheating. Well a couple of minutes being at my place he knocked out.

A couple of days ago I wrote the story about the apple in car.(I found an apple in car and he made a whole story up that didn’t make sense explaining how it got in the passenger door bottom holder.) Today he admitted he went with ___ (said a woman’s name. Couldn’t decipher what name exactly) but then he said something else

His phone was on his hand and it slid to the side (on iPhone) and this photo came up on the stack. Idk if to make a big deal about it or not since I know iPhone puts random old photos from years ago… but I haven’t had an iPhone for that long so idk if the stack only shows recent or old??

but he has a pimple on his face, the same one he had about 2 weeks ago… then again he does look a bit skinnier but idk it could just be the angle

What should I do? How should I approach the situation?