Please don't override!!!!!!

For all those who love others please love them and accept them the way they are. Don't try to make them live the way you see the life. Why is it that everybody want that they as well as others should live life in a rational way. Why?
Just caught this scene from one serial in which the girl and the boy loved each other very much and after few ups and downs finally got married. But the very next day, the boy dies and the girl just dresses in white to this the whole of her family exclaims that she was married for only a day! But the girl simply answers that she only knows that she was married and her husband is no more. That how does it matter as to how long she had been married? The only thing which matters is that her love, her hubby is no more. All the family members are worried to the girls future. But she is contented that she belongs to her husband only.
Now this is the point which I want to make. I know that the Parents love their children and want to see them happy but then why they always think that being with somebody is happiness? Why don't they understand that they should leave the decision on the person facing it. They should not override their decisions on others. If a person want to be happy can't he/she be happy alone? I know it's difficult but still just leave it on them as to what they want to do. Why always it has to be if not this then somebody else thing? (I'm sounding weird? But that's the way it should be.)
If a person is in love with somebody and if they can't get their love somehow or sometimes they lose it in this way then why is it that others want the person to move on. Okay! you should move on in life but why this move on means to get involve with somebody else? If it's not acceptable to them, why others have to force on them? Why they can't live for one person? Why they should always be with somebody live and present? Belonging to one isn't this important? Yes, but why is it conditional on somebody's being alive or dead or their presence or absence? Just leave the decision on the person who need to take the decision. Don't you decide what is good and bad for them. Let them decide what will make them feel happy and contended. Give them time. Same was the story of "I too had a love story" the boy and girl was about to get engaged but the girl meets with an accident a day before the engagement and after passing through very critical situations she dies and the boy even after a year of her death still could not get off from her memories. But the boys parents want him to get married to some girl as they think that he'll be then happy. But the boy feels that she was the only girl whom he had loved and probably could not love again to any other girl this way. So let him decide what happiness means to him and don't tell him what happiness ideally is and should be. But even my friends had this thought that he should have got married to somebody. But when I said that he should do what he feels then they had this dialogue for me that, "my belief should be only what I can do!" so they mean no one can spend their life for one person when the person in presently not with them due to any reason. Don't know if I could do it or not but can't I have different beliefs and act differently? As such we all know what is right and what is wrong but still do we always do things the right way? Have we never done anything wrong as of? Then, why can't people have different beliefs and act differently? As they chose to act differently only because they have such overriding people in their lives and they do things for their happiness. You never know?