Not all excuses for cheating are bad excuses. Maybe someone put a spell on you that caused you to switch bodies and while they were occupying your body they cheated on your partner as you. Or maybe you were blackmailed by a powerful organization that threatened to end humanity if you didn't cheat on your partner—and you were just trying to save the world.
However, most of the time, there is really no good excuse to cheat on your partner. But that won't stop cheaters from trying. And boy oh boy do people get creative when they're trying to come up with an excuse for inexcusable behavior.
1.) From lookwhatlook: