Would you just deal or leave them?, I'm sick of hearing this from him... Options

[Cujiine]

Ok well a LONG time ago like two years ago, One of my friends got with another one of my friends (two years difference) and everything was great until 8th grade when she decided to go "emo" so since she couldn't bring razors to school, she would bring tic tac boxes and then break then and scratch herself with the pieces. But she sit there with the piece over her wrist and stare at one of our other friends and wait for them to look back at her before she'd start scratching her. She also came up with this stupid story about being afraid of telephones. Which I know wasn't true because she'd always take our cell phones and call people with them and have no problem. She would also get annoyed at me or someone when they said they were in love with someone because "It's not real love it's just hormones" and then she'd turn right around and say she was in love with her boyfriend. She would just get on our nerves so much and I couldn't get why her boyfriend put up with it all. So would you put up with it or leave them? I still wanna be friends with her and we got past all of that but her boyfriend keeps asking me if he did the right thing by staying with her and ignoring it.