help?!? my best friend is really depressed?!?!?

my best friend is really depressed because she wants to have a relationship, i mean a real relationship with a guy. mind you, we're freshmen in high school and all the guys are immature! how can i make her see that she doesnt need a guy in her life?

shes been really absent minded and doesnt want to do anything any more... its like shes dying or something... i talk to her about it and she doenst deny it, and shes like yeah i know, im really depressed and idk wat to do...

im really concerned and dont know what to do! i've tried talking to her about it and stuff but that doesnt help.. what else can i do?? what should i say?? how can i be there for her when she barely talks any more?!?!

thanks sooo much

best answer 10 pts!