party picky

A person who is overly selective of what parties to go to that night. They usually give lame reasons, such as: not wanting to run into a certain person, the location of the party being too far away, etc.

girl: Hey, Andy is having a party do you want to chill there?
guy: No, those people are d-bags.
girl: Alright well how about Charlie's house?
guy: NO! Addison will be there and I definitely don't want to see him.
girl: You're being so party picky!