I think my biggest impression of this episode was that Jay must be really naive. He was so convinced that Kim and Chelsea would go to the end with him. (I wonder why he thinks a jury would pick him over one of the girls. My husband suggests it's Jay's model ego doing the thinking there. I dunno.)
May be it's the editing, but it seems like when both Jay and Troy are asking the girls if they are really going to stay with that alliance, there is such an awkward 'dead air' time before the girls assure the men that yes, we're with you, it should be obvious that it's a lie. Troy did kind of wake up compared to last week, when Kim played him like a fiddle into voting off Mike. At least this week Troy sensed he might be being conned, that this time Kim was tooooo insistent that all was ok.
Then Tarzan, after pointing out that the girls are going to vote all the men off, goes and votes for Jay! Why the heck didn't Tarzan, Troy, Jay, Leif convince Christina to vote Kim or even Alicia out. Christina should dislike Alicia enough from the earlier episodes to get rid of her. Surely she doesn't think the girls have welcomed her into their alliance now. Anyway, overall, I'm surprised how poorly the men are playing, letting the women wipe them out one by one.
While I like Chelsea, at this point I think Sabrina will make it to the end. She doesn't get much air time, but seems to be playing smart so far.