Am I really falling in love?

I've been talking to this girl and we haven't met personally yet but we chat on skype all the time. I saw her in my friends chatroom in tinychat and right away at first glance I got struck so fast and I thought she's really beautiful I should really talk her pretty soon. its been only a couple of weeks since I started chatting with her and she insisted that she wanna see me so we went on cam and she said that I'm really sweet and would really like to meet me personally someday. I think I'm getting too overwhelmed by her and too infatuated too fast. I really like this girl but Im afraid that I would just be rejected just like the other girls I asked before thats why I don't wanna fall in love but its hard to fight it sometimes.....what should I do??