I can only empathise with what's going on in your mind prometheus. I am in the same boat. I have two big surprises in the last 3 weeks: the no transfer, and the solicitor letter. I also cannot trust my W at the moment. Who knows what is coming next.
All I can suggest (since you are at least communicating, lucky bugger) is to maybe expand on your answering back to her. Rather than good morning. Yes. No. Maybe a better answer would have been to at least state some of the reason why you didn't sign the lease and added "can we talk later about it". Also rather than saying no, you could have validated the answer. "I didn't mean for it to cause difficulty to you, can I hear later the reasons you feel it was causing difficulties". Something along those lines anyway.
With regards to the weights with cardio. One of the main reasons it is suggested is because the bones and muscles deteriorate more as we age. The weights are believed to reduce the level of deterioration. As a PE teacher I should know this and do this, but after losing nearly 20kgs on the separation diet, I am showing a huge loss of muscle and simply look like skin and bones. On the positive I am starting to show a six pack. Or at least a very good 1 pack.
ME:51 W:46 M:25 S:22, S:20 Divorced 16/9/15 BD 10/12 W left 12/12 with OW, affair confirmed Nov/12. Dark since 6/13 I"m in a new relationship since Feb 14.