Sam is trolling/ duping Marc, isn't she?
 

Sam hangs I out with him, but doesn't do what he says (thought it was big marc's house and all), so he has to hang out with her insipid personality but gets none of the loyalty where it matters

She slated him as soon as she thought he was gone.

She made it obvious her showmance #1 choice was Danny -Marc was sloppy 2nds

When he practically tried to strong arm her in last nights hl show into voting for core 4, she went for Harry instead.

She blatently prefers the others, but wants AT so is sticking with Marc to enhance her Tv ambitions.

Poor Marc.

She maybe thought she had a better chance against harry than any of the others, I hope not.

Sam is in it just for herself, which is understandable. She knows how this weeks Mr Popularity can be next weeks up for eviction, so she's trying to keep both sides of the house sweet. I don't like Sam, but I can see why she's doing it.