Sorry, I'm trying to type through just hysterical laughter.
So as previously pointed out, Matt offered himself as a pawn. Rachel and Brendon have been in the HoH talking about their options for what seems like HOUUUUUUUURS. Rachel's still in love with the idea, so when Andrew came up in the middle of their long-ass, kiss-face session Brendon OFFERED HIMSELF and spilled the beans RIGHT IN FRONT OF RACHEL. She was immediately pissed and Brendon packed up his shit and left. So she did what any mature person would do... bawl their eyes out.
Cut to 40 seconds later:
Ugh. This is going to end horribly. I cannot friggin' wait.