Jealous Feelings of Envy

Do you ever find yourself feeling a little bit jealous of someone that you love? The fact that you envy something they have/done makes you a little mad yourself and that doesn't help the whole situation either. You want that person to succeed and do well and have all the things that need/want.. and yet there is a that little bit of twinge that is just enough to make you feel like somehow along the path to where you both are now that you have been slighted somewhat by fate. The fact that you feel that way makes you feel sooooo guilty. What do you do when you feel that way?