My boyfriend and I started dating back in July. Things have been great. We currently live together, however I feel like maybe we’ve been having issues lately? Before we started dating everyone told me he was a man whore. Even though he had been in a relationship with another girl for 8 years. He never cheated on her. He did things with other girls when they were broken up but never while they were together.

However I know he’s “talked” to other girls while in that relationship. I don’t mind him talking to other girls and having them on his snapchat as long as their intentions are good. However there’s this one girl who I can’t stand. They are 13 years apart. My boyfriend and I are 10 years apart. He was friends with her brother and that’s how he got to know her. It’s obvious she has a crush on him. She is always very rude to me whenever we are around each other. So I don’t like it when they talk because she likes talking to him and controlling him. And he just lets her!!! She used to even make him take a screen shot of who he was texting everyday and send it to her, he says because she thought he was talking to her brother’s ex girlfriend. However, he was in a relationship with the previous girl for 8 years at the time. And then I see messages that he said to her saying ‘well that’s good, I know what time I said it so I can look back in your photos to see if you did it or not ,to see if you want me to stay around.’

That was since we’ve been together. I asked him about it and he says he doesn’t remember what that was about. I don’t believe that at all. They argue a lot so a lot of the time one of them has deleted the other off Snapchat. She wasn’t on his Snapchat recently and I would ask him often if he had added her back on Snapchat and his response was always no. Well yesterday I went on his Snapchat to see some pics that he had saved of a horse we are looking at buying and I saw that she was back on there, I asked him when he added her back and he told me like 2 weeks ago. I’m so upset. He knows how much I don’t like her and I’ve been asking him several times a week if he had added her back and then all of a sudden I see it and she’s been on there for 2 weeks???

Then I want to know who he’s messed around with in the past because I don’t like going around people he’s messed around with and acting like everything is fine. That’s awkward. I want to know who he’s been with so I can be sure he’s not flirting with them anymore. I’ve never been cheated on before, I am just a very insecure person. He won’t tell me this one person. He’s always told me in the past but won’t this one person, and there’s a high chance we are around her a lot. What do I do?