Merryweather is in full prom mode. Teachers are totally frustrated because the students can't concentrate on their studies.
Andy Evans and Rachel are double dating with Rachel's brother and his date.
Melinda wonders if Rachel got her note. She wonders if Rachel and Andy laughed about it.
It's possible that Andy won't rape Rachel. If Melinda doesn't stop obsessing about it, she'll drive herself insane.
Heather comes over and complains about how much she hates being a Martha.
Melinda tries to figure out what Heather wants from her.
Heather comes out with it – she needs Melinda to help her fulfill a Martha assignment, which is to decorate the Holiday Inn ballroom for prom. In exchange, she offers to help Melinda decorate her room.
Melinda tells Heather she won't do it. Shocked, Heather asks, "But, whiii-iiiy?" (82.19).
Melinda says she will be busy. Then she tells Heather to make like a tree and leave, so Melinda can clean her room.