Social Media

Me and my boyfriend have been dating for 2yrs and I’ve never really went through his phone without him looking or checking beforehand. But today he left his phone and I decided I go through it and I know that could be an invasion of privacy but what’s mine is his and his is mine lmao! But quite frankly I was very disappointed we always had problems about him liking other half naked girls pictures and I’ve told him multiple time how it makes me feel!!! But when I went through it I found that he had another account and follows a whole bunch of half naked girls and has them saved! :( idk if feeling upset is okay because I did go through his phone w/o him knowing! And I want to confront him about it but i don’t know what to say to him!