Yo sweet guy,
Firstly, get 2 know what ur friends problem maybe. Though, I'd think she has a wrong image about guys or something like FatFeline said she must have had bad experiences in the past coz girlz[just the first timers] have this small impression about guys in thier minds and they think that if atleast 1 character from the horrid part of this impression is discovered in this guy they expect the guy to have every other bad charaters that they can think of, SO secondally get into ur past thoughts and try 2 find out if there was anything u mst hav done/said that must have said 2 have upset her. If there's nothing like that then the last thing u could do is call her up and ask her what sort of a relationship is she expecting from you.
If that does't solve ur problem if and only if the previous steps don't work try taking on another grl X[a friend who knows how 2 act her part quite well] nd have a good relationship with X so that u could get ur grl 2 realise how much she jst missed. Finally ditch X and see if this grl comes 2 ur house with a "i'm sorry" card.
An answer 4 everyone.
.... TeenZloveR 0X