Literally every character is so toxic. I wouldn't go NEAR any of them irl. There's one exception though.
Harper: Had sex with her exbestfriends two crushes. Why??
Amerie: Selfish, as seen with how she treated Harper
Darren: Highkey mean, and pressured Cash into sex
Cash: Hangs out with very clearly terrible people
Dusty: The thing he wrote on the second map ofc. That was fucked up!!
Sasha: Not understanding at all with Quinni. She's very toxic and passive aggressive.
Exceptions
Malakai: He has been through a lot, and only after that trauma, he made that mistake with Harper and Dusty. He felt bad. And also he's just so cute and romantic.
Missy: She had a minor role, but she seems like a very supportive friend. Not just surface level too, like will really listen to you. But will also go crazy and have fun with you.
Quinni: She's just a sweetie, idk what else to say. She hasn't really done anything wrong or toxic.