To get her to come back to the house, cos she is causing a lot of the drama, bb producers would have promised her the earth. She wouldn't have liked hearing "get gemma out", so I presume she kicked off about that when she walked out, so to appease her they would have promised her immunity from next eviction. Being immune she doesn't have to do any tasks for a few days (i don't wanna play no games anymore) and she has had a buffet of food, a male stripper, no doubt she will get to have her hair done in next few days - whatever she wants to keep her in. It is pretty pathetic. She is a nasty piece of work and feeding her ego will make her even worse. Just don't let her win please!