is'nt love is the only reason why a relationship stands for years or forever

Of course it is! Love emcompasses many different aspects. I believe that when you really love someone it means that you have taken the time to get to know who they really are, or what makes them tick. When you understand someone that way, you excuse behaviours that you may not otherwise, the little things don't bother you. One of the things that makes you fall in love with a person is agreeing on the big things, the "rocks" in your life that are non negotiable. Once you agree on those the little things don't bother you and you let yourself fall in love. You already know that you can live your life with that person, or I don't believe you are really in love with the person, just the idea of being in love, or part of a couple. True love lasts forever and overcomes all obstacles!

No, you also need trust, friendship, and things in common. You also have to really LIKE the other person. There are more things, but it's late and I'm not thinking very well at the moment