Squandering slut bag 

Someone who wastefully uses a genuinely precious person without recognition of their selfish actions. This person could be considered greedy and in the act of doing so, offends their victim.
These people are percieved by the general public as sweet or charming but are actually disguising their greedy nature by their good looks and fake persona.

"I really hope that squandering slut bag doesn't show up at the party tonight."

Squandering slut bag by G-ruNdZ March 30, 2009