If you completely ignore my advice and decide to go to prom with your evil Satan's spawn cheating ex just because they "already spent $100 on the tickets," you'll need to alter your expectations a bit.
Don't expect magic on a stick. Expect the uncomfortable silences and forced smiles in pictures. But don't doom the evening to certain death, either. You need to make the best of it.
If you and your jerky date end up fighting on the way to the prom, calmly say you'd just like to hang out with your friends once you arrive. But don't just abandon your date. That's rude, and you wouldn't want someone to do it to you. Find a group of friends to dance with, then make plans to meet your date for a slow dance, and maybe you can sort things out then.
With softer music and the loveliness of the evening baked right into the lyrics of a cheesy ballad, who could fight? No matter what the case, don't make a scene. Determine to have a good time, no matter what. However, if you're with someone who continues to treat you like crap, you have my permission to tell the whole school what a bad kisser your date is. A bad kisser who smells like cheese. Old cheese.
