When someone has good news for themselves, do you care? When someone has something good happen to them, are you excited?
^ Basically this for me too.I am envious of others achieving things, especially since I regularly don't, but yes, despite my jealousy, I am happy for them.
This depends on other factors, too, like how I'm feeling at the time they deliver the good news, or if I like the person at all. I'm always happy for my friends, though, no matter how much envy I carry.