He likes me, she likes him... and i think i do too :\?

Ok. So, my friend liked a guy at our school since... idk, december. I think he likes me, but she says she's fine with it. ( i asked if i should, like, try to act jerky or something... she said i should just let it ride) Recently, i think I've started to like him back... and I would ask him out, its just that my friend liked him first.