So my fiance cheated on me with a girl that he went to highschool with. I had a bad vibe from her the moment she added him on Facebook so he deleted her. That was about a year ago. Then a couple months ago he re added her after we had that talk about not adding her back. Then I came to find out he cheated on me with her weekes after he added her. She gave him oral. He wanted more but the girl said no. Anyway he went to see her while I was at work then came to see me right after. I knew something was wrong but I could not figure out what until 5 days later the girl told me he chested sending me screen shots of every convo. So I confront him and he doesn't want to tell me until I tell him she showed me proof then he did. We have a 10 month old daughter and I am very freaking broken ....I need advice what do I do?!?!?!