Nobody has really said exactly what happened last night, but there's rumors that Memphis threw it for Dan. Renny is pissed, and won't talk to either of them. Keesha just said that they now know that one of them is going home.
It is too bad for them, but if this is true it is good game play as both Memphis and Dan make it through the week. Hey, one of the four has to go home this week.
EDIT: MEMPHIS DID WIN! He's now chatting with Dan to ensure there's no "future antics" if he saves him.