Okay, now that I've read this chapter enough times to make my eyes cross and I can no longer see any glaring mistakes (along with adding, adding, adding until it's a 24 page chapter), I figure, why wait? Post it. So I have.
Brian gets Amanda and Emily alone for a little heart to heart that might enlighten the reader as to Amanda's motivations and then as if he's trying to make them walk out despite the girls' private bet (one he knows nothing about), he increases the number of rules... again...