My boyfriend used to be a flirt and he’s friends with this girl that he found attractive and used to flirt with. I had no problem with it til lone day she posted his license on Snapchat. Now, I personally think you never post a guy who is in a relationship in your snaps or even anywhere but I let that go. Then he goes and takes pictures on her phone and she goes and posts them on her finsta “fake insta”, where you post personal stuff and someone commented “get that sis” like what the fuck. I know this seems really childish but it brought down my confidence a lot and hurt me. He lied to my face saying they never flirted and he never found her attractive till he confessed later in text. He said it was a mistake and he was willing to cut her off but honestly my trust is kind of destroyed. It hurt badly when he admitted that he found her attractive. He had no problem cutting off other girls but this one he seemed to stay friends with. I don’t know what to do at all. Help