Why did Henry VIII like Anne Boleyn when he was marrried to Cathorine of Aragon?

Because she was young and very beautiful. And also Anne played with his passions, making him even more infatuated with her and she refused to give him her maidenhead to him while he was still married. It was that and the fact that Catherine of Aragon couldn't give birth to a son that made Henry VIII want to divorce his wife