What is it about Love that heals wounds? Should Amir have told Soroya about Hassan?

What is it about Love that heals wounds? Should Amir have told Soroya about Hassan?
Love heals wounds because if someone is alone, hurt and they don't know what to do. But than someone comes and shows them the love that they have wanted and it heals the wounds of being alone. i think that Amir should have told her because Amir has kept that secret all his life and every time someone mentions Hassan's name Amir ends up feeling very guilty that it kills him in the inside. Like when Amir found out that Ali knew about Hassan's rape he lost some stress about it. So it's true that the truth sets you free. In Amir's case that sounds like a very good idea. Amir can't even think about the rape of Hassan because every time he just can’t take it he chokes. Like when he was in the car with Baba and than Baba mentions Hassan and Amir has to leave the car because he could not breathe. This is too much stress to be holding in for the amount of years that Amir has. He should have told Soroya (the love of his life) about Hassan than he would have let the stress go away little by little.