The whole bitterness, (from Lateysha and the other HMs), reminds me of BB9 when Bex left. She was a member of that years "in-gang", and when she was evicted, there was a sense of self entitlement from her friends, saying that she shouldn't have gone and that it should have been Mohamed. Luke in particular, completely failed to comprehend that the reason she was evicted was because she was disliked, believing that Mo had been lucky and that Bex only just had the highest percentage, when in fact she had about 65% out of three people, which isn't really close at all. It almost felt like they were completely convinced that she was staying.
This is much like the reaction with Lateysha. Jason had every right to pick her as she was eligible to be picked just like everyone else, (apart from Andy, of course). Why shouldn't it have been her to go? What is it about her that makes her so special to have the HMs saying that she shouldn't have gone?
And Lateysha is now saying that she'll never forgive Jason. You've got to expect that there's always a chance that you should go. Nobody is so special that they have more of a right to stay above anyone else.