Jelousy part 2

Seeing someone happy puts saddness in my heart. But when you see people sad saddness also takes place but never seems to be as bad as when you see them happy is there something wrong if a person ever feels like that.

I think that if someone helps someone else they should be happy that they have helped the other person to gain a fufillingness but i have never seemed to understand how someone could be happy for a loss maybe im just too greedy....