I think Cheska is pretty pointless as is Victoria. As if either of them are/were friends with Louise. They just fancied tagging along with Rosie to the spa for a bit of fun/bitchiness.
Another thing - how on earth does anyone think it was ok for Spencer to make moves on Louise and for them to sleep together? Jamie was dating her and had made his feelings very clear. Spencer is a grade-A b*****d and Louise is a complete fool. Plus Hugo who is normally the voice of reason was saying it was ok, 'you'd do anything to get the one you love' etc. Sometimes I think these people's morals and values are totally screwed but I guess that's what makes it such good viewing!