Thanks Sandi, that is what I'm doing especially once the kids are in bed. It does feel like she wants to play happy families without doing anything for the family. I go to the gym 3 nights a week and the others I just do my own thing. The weekends are harder due to the kids. I don't initiate much conversation other than the kids. She always wants to know where I go but she knows I go to the gym. Going out tomorrow with friends and she had several questions since one of them talked to me about in front of her. Just said I would be out with friends, she asked where and I just said that bit hadn't been decided yet. And left it at that. However she always wishes me a good workout, asked me if I had a good one if she is around when I get back. I do keep my answers short but polite.
I have removed any kind of affection for several weeks and moved the remaining clothes of hers out of the main bedroom at the weekend. We only have the one car so we have had to create a kind of schedule unfortunately.