Should I pm this girl on facebook about cutting?

[AprilShowersBringMayFlowers]

i asked this girl on ask.fm if she used to cut on ANON, only because i heard someone say she used to. this is pretty much true though. I used to cut and i can relate to that, and i told her that.
she said i should just personal message her, and i'm not sure i should.
i mean if she used to she probably won't judge me for the fact i used to, but we're in different social groups completely. Our clique at school is fairly sized but she's really popular and is part of the pot-smoker crew...i don't know her well at all. so i don't know what to do. i kind of what to but feel like i might just chicken out because she'll be like "oh look at this ugly unpopular girl".
so should i or not?

[Dallas]

U shouldn't because not only will she make fun of u but she will prob to try to get u to smoke weed first

[Kelly]

You should try, but be prepared to get made fun of or flicked off because of it. She might not see reason. It's always nice to try, though. Tell her someone cares!