[quote name='"bigheist"'] I think thatd prolly work the best tbh lol[/quote] She obviously knows he gets ass why do you think she wants him?
Let me answer your question with a question. Why do you have a 13 year old girl on your facebook if you're 21?
Is she like a friend's sister or something? I don't understand why you don't just delete her or just tell her she's too young for you. It wouldn't be a big deal. 13 year old girls are emotional as fuck but she'll get over it.