They are not showing us what is really going on! For example, a lot of the HM's nomming Sarah were saying how she inserts herself into others conversations and turns them around to talk about herself and her woes...that Trisha can't stand Sarah out of everyone else in the house...
I didn't even see anything wrong between Trisha and Sarah in the HL's?
We are obviously missing out on a lot, and the HL shows are edited to favour certain Hm's - until nominations, when they can't really control who THEY, the producers, favour...it's all a sham really isn't it.