Susan: Are you going to the party tomorrow?
Bob: Sure, you?
Susan: Yes, and you better be there becuase I'm going to make you feel so good. ;)
At the party the next day:
Bob goes to grind and possibly make out or more with Susan. In return for putting himself out there he gets a slap to the face.
Susan: WTF are you doing perv?!
Bob: Yesterday you...
Susan: EW! Boys are disgusting.
Bob: But yesterday you said....
Susan: What would ever make you think I'd want that?
Susan once again slaps Bob and walks away.
Bob: What a fake whore.