I'll Pretend

Butters loves Kenny, and Kenny loves Butters. At least, Butters likes to believe so, so when he sees Kenny shoving Bebe up against a wall he doesn't say anything. He also doesn't say anything when he tries to suprise Kenny and accidentally catches hin and Craig in a compromising position.

He sees the stares, and he hears the whispers. Sometimes they'll even ask him concerned, so he just tells them they were mistaken, because Kenny loves him.

So when Kenny comes home smelling like sex and guilt crying and begging for forgiveness, Butters forgives. Kenny says he'll never do it again and Butters pretends he believes him.