I think that a person can't know from just a conversation over the internet that they love someone. It takes time spent with a person to know. I f someone was to do that I would try to let them know what my postion is and if they didn't like it then I would move on.
RE: Do you base your criteria for dating on looks first or personality first?
I think that personality is the first thing we observe wether it be on the net or in real time.