From my experience when you try to make all parties happy, it backfires big time.
Good point, of course but David didn't even attempt to get Chris involved. Even when he went to dance, he should have said "why don't you dance with Chris, I have blue balls and can't dance, because my balls are so blue they will scrape along the dance floor."
Cmon admit it once she showed up David cock blocked Chris, and out the back she flashed him her titties and they kissed. Damning evidence, and his buddy also took damning photos of both of them, case closed, order in the court, GUILTY, GUILTY, GUILTY.