You haven't failed those interviews, they'll have just gone with someone with more relevant experience. Are you working at the moment? If not, have you considered doing temp work to gain experience?
Experiencing love if you get dumped shortly after, seems to me to be a statement that you're not looking for love, but sex. And if a girl is looking for a relationship, they will see through that, and more often than not, be put off. Try looking for a girl you'd like to spend time with rather than an 'object of your desire'. (Btw, women aren't objects)
