[jennyjuniper]

Perez arrived in Britain with a bad rep and no real fan base, so it's my belief that he didn't just study the housemates (He has admitted this) but that he studied the British people and realised that the British are suckers for the underdog.
He also realised that Katy H is largely unpopular and so targeted her to 'pick on him'. He first tried to drum up support against her from the other housemates. But apart from Nadia (he struck gold there) the others didn't want to know. Earlier on he also tried to bad mouth Keith, until Nadia told him that Keith was well liked by the public. Since then, he has left Keith alone.
He freely admits he goads Katy H, but his intention I am sure, isn't just to annoy her, it's to fulfil her role as his tormentor and present himself to the great British public as a fully paid up underdog.
Why else, early on, when he had the chance to nominate Katy H and Nadia was panting in expectation that he would, did he choose to nominate Alexander instead?
Many people have begun to support Perez, not because they like him, but because they dislike Katy H and her so called bullying of him, perhaps not even realising that they have been played like a stradivarus.