HD, I think you are right about the cancer, and I think that the low count with cancer is caused by the treatment, not the disease (csw, MD)
GEL, I think W may be beginning to realize that I am not trying to save the M for any reason other than her. At first, she always said it was because I wanted the house, or didn't want to change my lifestyle. Now she sees that I haven't stopped loving her, and she seems confounded.
Her response to my physical touch was definitely mixed. She pulls away, but not always. She kisses back, but just barely. I am not reading too much into anything yet. The fact that she didn't jump backwards away from me is a good sign, if only because she is unwilling to hurt my feelings. Even that is a big step compared to recent attitudes. I will let her know how much I want her, at every opportunity. (though they are infrequent, the opportunities show from time to time.)
I am hopeful that W's moral compass is being recalibrated to true north. She was pretty skewed for awhile, (like a 180) I think that when she spends time with MIL, she gets a dose of morality. FIL will encourage the D until the very end, IMO. OM is definitely going through some difficulties, with his living arrangements and such. Hopefully those troubles will trip up his plans.