Honestly, yes I feel that true love exists. Part of me agrees with Chris in saying the only true unconditional love is between a parent and a child. I know if my future children mess up and do something stupid I will still love them and be able to forgive them. I do not know if I would be able to forgive my future wife is she were to cheat on me. Which is why I would agree that it is conditional. I would probably still love her; but dont think we would be able to stay together.
That said I do plan on getting married someday. I will take the good times with the bad. It's part of life.
-Marc