You had a boyfriend who was such an Asshole to you, he's a cheater, and overall just an asshole. He had a best friend that always just watched him treat you wrong.

One day you went to a party and your boyfriend got a dare to kiss any girl, he kissed someone that wasn't you. Everyone was looking at you then his best friend came up behind you and said.

"Yikes.. He's such an asshole isn't he.. I'd never treat you like that."

He had a teasing voice, but also genuine.