Many WAS get into a negative state of mind as a way to justify the reasons for leaving the M. They have a looong scorecard of your 'wrongs' and holding on to it tightly.
Just continue doing the activities you enjoy regardless of how W responds. Stay in the marital home and if W brings up you moving out, put a hand up and say "If this is a problem for you, you should be moving out. I am staying here as this is my home."
You can move in another bedroom.
If her criticisms of you being negative are valid, then work on those issues and work on being more patient when interacting with your kids, wife, friends and family.