I'm all for zara and Sam, but feel like the girls are threatened by her beauty (let's face it tiff looks like a foot and habbs is no oil painting) and will use the fact she is from a lower social class to get under her skin. It's all they have, since she is 50 x as beautiful as each of them.
I'm so sad tiff just seems to get a free pass back in because she's Lucy Watson's sister. She's ugly, boring, patronising, doesn't dress well, her voice is whiney as fuck and yet we are supposed to believe she has this "magnetism". She's lucky shes in the private school crowd where net worth is all that matters (series 1 Amber and Rosie fortescue anyone?) , if she went to my local comp she'd have been bullied to high heaven.