Love Doesn't Really Exist!! Or Does It?

One very lovely day i was having this discussion with a guy who was in a dilemma as to which of the two girls currently on his P he should pick. We were both trying to weigh his options. Then a very sincere question came up. "Does love really exist". Cos really i wonder at times if people really mean their "I love yous'".Is it just excessive like that is termed as love? Or is it obsession? Or do we claim we "love someone" when they hurt us and make us have to suffer to get them.
Back to the faithful day. He said " There is nothing like Love".  Woow! Really?........Another question came up... " What then makes people stay in their relationships"? He answered and said "Commitment"This is coming from a guy.
I asked another guy if he believed in love. He said Deola "Love is pure and real. It comes to those who believe in it whether you are heartbroken, tortured or whatever. It's a broad course for everyone to study and we keep learning everyday". Gbogbo story.
Whats your opinion guys? Do you believe in love? Is it Love, Excessive liking or obsession? And Is it Love that keeps a relationship or Commitment and Understanding?
Kindly use the comment box.