You'd better get your shit together and pass that final. Maybe you can get the girl he's cheating with to tutor you. She seems to know more than you do.

I find the best revenge is to be better than they thought you would be. my ex husband cheated and I left, finished my PhD and now make bank while him and his girl live in a rat infested shit hole. knowing he regrets what he had and lost is a great feeling. so pass that gest and rub your best life in his face.

No, sweetheart. Please don't fail. Don't let that cheating bastard prick win. It's okay to cry but don't give up. Instead, make him regret cheating on you by passing that test thus showing off your intelligence and strength. If you pass, you prove to yourself that you're mentally tough and his deceitful ways had little to no effect on you. Furthermore, you prove that he didn't deserve a smart lady like you. Do your best and pass. You'll feel better in no time.