It's not impossible to fall in love on-line. But speaking from experience... falling in love on-line than real life is completely different. We tend to project the other person on the other line the way we want him/her to be only to find... in reality that s/he is not as we think they are.

I always say... whoever says that misery loves company? Why do you think you're shutting her out? Are you embarrassed for her to see you this way? Or... are you freaking out because she says that she loves you but you're not able to reciprocate...?