lame as shite. If she had any sense - and bless her, she obviously doesn't - she would forget about trying to play BB's game. It'll bite her in the ass later.
She should play herself, realise that somebody else will get a shitload of nominations for being a knob, and depend on the public to 1. respect her for standing up to BB and 2. vote somebody else out .
She will then go into the 2nd week without having to make up for her behaviour.
BB didn't say they would punish her if she didn't behave duplicitously - she is up for nomination anyway. BB can't take any punitive action against her at all unless she breaks the only rule, to discuss the diary room conversation.