Complicated question.....

I have been thinking of a question: What is the meaning of LOVE? If two people are really loving each other, how come they will be so many conflicts and problems which only lead to nothing but troubles? Some people tell me that love cannot last forever, we need to manage it well. But, how to do so? Maybe I am not in the suitable level of thinking for this. But this is really a complicated questions to me.
Someone made me puzzled before I think about this matter seriously. But now I have cleared up my mind and I understand something in my mind. What is supposed to be yours, it will be. Never force yourself to do something that will lead you to unhappiness and troubles. It does not worth to spend time or energy on such kind of torture. Maybe, it is better to keep the current situation. I am still not prepared for any kind of further relationship. So, batter stay away from all these.... I am tired with guessing games......
I am still young. I should live my life in my very own way. But not waste my life on such unanswered questions. What am I trying to imply? Well, just let it be. I believe that destiny does exist in our lives. We just need some time for it to arrive.