Become more involved in her life! Get to know her better. Though it's common for girls her age to cut, she probably is doing it because she's lonely or overwhelmed. Take her out, spend some time with her, and just generally be her friend. Even if she doesn't tell you about why she cuts, you might help to lessen the load on her shoulders.

Regardless of the choices your son makes, never forget that he's still your son. You obviously love him and to treat him differently because of his choices would be unfair. Don't try to 'change' him or explain how his choices may be 'wrong', he'll feel oppressed and lonely and likely become depressed. These years are some of the most important years in his life when it comes to establishing a life-long relationship with you. Don't let your son's uncertain sexuality effect your relationship with him. And if someday he decides he's bisexual or gay and happy with it? Keep in mind that it's his personal life, not yours, and be happy for him!

Don't worry, you have friends here, and I can be one of them!!

E-mail me sometime!!

I feel just like you. Although, I have been havind same sexual desires since 2000. But, because of my religion (at that time), I got married to my best friend. Now, almost a year and a half later, I am totally miserable. I haven't had sex with my husband, because I just don't find him attractive. When I pleasure myself, I always think about women. In fact, I fantizise about them all the time. I have gotten help, but my psychiatrist doesn't like to dwell on that kind of issue, so I feel that I am going it alone. In fact, I am sure I will get a divorce and seek same sex relationships.

Just do me a favor, ALWAYS BE TRUE TO YOURSELF!!!!

Well, first of all, you're intentions were all wrong from start.
I take it you wanted her number more so because of her looks than because of her personality. Also, you can't expect someone to like you just because you may see yourself as a pretty handsome and attractive guy. That's one of the most shallowest and superficial things a person can believe in. I apologize in advance if this sounded harsh, but the way you elaborated this story kinda puts you in a rather dim light.
If you want my opinion, instead of focusing on your looks or someone else's appearance, be a friend to them first, and if things like feelings of true love develop between you 2, then a date certainly wouldn't be too out of the question.