I wasn’t going through my SO social media intentionally but I was cleaning and found my old iPad and he was still logged in on it and I saw that he had searched this one girl up ALOT on Facebook over the past few months and when I asked him about it he said she was a friend and they had been talking and snap chatting for a few months . we have been together 3 years and I never knew she existed. After asking him he logged onto my fb without telling me and blocked her which made me think she blocked me . He said he didn’t cheat and so I asked if I could read their messages , I begged him to make me feel stupid for thinking he would cheat and to prove me wrong .... but after a lot of arguing and him busting down the bathroom door after I took his phone I never got to see the messages . Once I realized he blocked her on my account I unblocked her and asked her but she said they weren’t cheating . If he wasn’t then he had no reason to hide it from me . Every time I bring it up he only answers with “idk” and that doesn’t give me any closure .. I’m just not sure if I’m super crazy or if he probably cheated .