I think my friend is mentally ill and needs help?

[Victoria]

Well... Yeah, I know there's some type of disorder, where the person can become overly obsessed over somebody, and things can get pretty out of control.. I would definitely advise getting him help, if your in high school, or middle school, maybe talk to the guide nice councilor, or call a therapist or somebody who you think could help him go back to normal.. Maybe have a family/friend meeting, and have everybody tell him what he means to them, and how they thing he should try and work on changed his obsessive disorder.. Advise him to get help.. But nicely.. Or that might not end well. Good luck! Oh, and maybe he's a trans, and he's starting to feel more on his feminine side than his male side, and if you don't know if he's trans or not, it could be because he doesn't want to be rejected as a person like lots of people do.