I agree, he looked pleased to see her, but personally speaking I don't think he will admit to not liking her as much as she did him, I feel he felt he had to comply in the house because Michelle is a strong character and if he started to back off in the house I am pretty sure he would of been at risk of nomination as well as a hard time from Michelle because of her 'I take no s**t attitude'. He probably felt slightly pressured to act with her the way he did, you could tell when he mellowed out when she left.
I don't think he will marry and have kids with michelle like she wants, especially when he finds out all her stories in the newspaper.