Its possible!!! I am in that situation right now..

but maybe the answer would really depend on each persons perspective on falling in love.. like me, i know that im in love when that ordinary person makes my day extraordinary. when he is the only who is dominating my heart and mind all day long, from the moment i wake up till i close my eyes at night.. sometimes he is still present in my dreams.. but the sad part was.. WE NEVER MET PERSONALLY! but soon i'm sure we will,, and im praying that the feeling would be the same when that time comes..