a member

So my friend is like really a red flag in relationship and stuff in more like gossip way. This week and last week she's talking to like 4 different boys and still going to Omegle, she says she's not serious about them and if she got bored she'll just ghost them. I'm really bothered by this but I can't really do anything about it, cause like yeah. I don't really like it when she does this, I think it's stupid and like really mean. Me and my friends tried talking to her but all she said was like "So what if Im a red flag, I'm only a red flag if I'm not serious in a relationship and green flag in a serious relationship. She only has 2 exes but she has like a lot of talking stage there's probably 10+ every year. And I'm so uncomfortable by the fact she kissed her ex talking stage while her relationship has a problem, and she says there's nothing anymore about them. It's just so annoying, I would think she has some maturity now since we're in g10 but she's like 15 so I don't know about that. But I feel like she doesn't even care. She says " I'll just marry a rich dude" like those stories and stuff, she's really dumb and annoying at some point. She copies homeworks and even test. She's even going to an ass school just bc it's closer, I know it's close and she has like fam probs but like tf that school got a student who is murdered there and ass teachers and usually online class. I don't like how she's becoming, I'm worried for her but like I don't know how to.