We have been talking since Nov 2011 and a 3days ago he told told me that he is falling in love with me.. And the next day he told me that there is no denying it he loved me all this time.And whatever I say will not change what he feels about me. I told him that you can't love someone you haven't met. He just laughed and said that it doesn't matter he can't help what he feels about me. Now I don't know what to think.

Can anyone give some advice on what to say or do? Am I being stupid and just play this off as a joke?