Well...I've been there. I'd hear somebody's good news and it would make me want to vomit.
If you don't feel happy for someone, you're not required to do so. You feel what you feel. Period.
Since your not asking about what you can do to deal with this, I'm guessing you posted this just to vent. That's fine.
Good things happen to everyone.
The waiting sucks- but you'll get your good news. When you do, you'll probably piss someone else off with it.