net feelings...

ever had a crushed with someone by only exchanging feelings through the net? Have been wondering how can a couple start a relationship through a net? I have a fren who really does that and now is already with her partner overseas. They started off by only communicating through the net chat. I was always wondering when this happen to me, will I trust these feelings? How true are the feelings to someone when you only communicate through words type in front of u? Are you in love with the someone over there? or are u only in love with the words on your screen?