I guess to clarify my question, it's more about do I respond if W asks what changes I'm making, or do I blow her off?

Yes - any and all changes would be for me and my son, not for her benefit.

H40 (me)
W34 (WAW)
S6
T11
M10

Feb09: Need a break bomb
Mar09: I moved to apartment to GAL, PMA, NMMNG
Apr09: WAW 'dating' OM at work, positive around me lately.

My Sitch