I have shoe envy - when people wear nice shoes, good for them, but I would like nice shoes too. In my size.

I am also jealous of people and will say "I am so jealous of you, that is great news!" - I would like to have that news as well for me, but not wanting the other person not to have it, ITMS.

I suppose I'm a fairly nice person. If I dislike the person then I just dislike them and they're a rotter for having good news, whether I want it or not.