A girl i like wanted me to fuck her in the park when we were there at night, (we french kissed instead) i said no, didn't say why, (had no condoms and too public), next few times i meet her i ask for sex, she says no, says wants to be only friends as she's off to uni, etc etc. Why did she reject me like that? What can/should I do? Was I dumb for saying no to sex? Thanks