Dexter is lavishing his attention on Charlie (in an attempt to create a story in the hope that the press will hound him once he gets out of course).
Gina will not like that. Guaranteed she will put him up this week along with Charlie (whom she never really liked and has used her to get control of the house).
I think his chances of being in the final are shortening pretty fast. The only way he can win this back is to ensure Gina is nominated by one or two of the others. But unfortunately he's so far up his own arse and trying to create his own road to fame on the outside that he's unable read what is happening and probably wouldn't have the testicular fortitude (
) to actually nominate her to her face anyway.