Absolutely. Regardless of who is starting the legal action your W has decided to leave the family. She has done this through her actions i.e. A, failure to work on M, etc. Her actions she needs to feel the full consequence. Do not cover for her.

As for the email, its her way of moving on to the next phase of your R; co-parenting. You are correct to not respond.

_________________________
Me-41
W-39
M-15 yrs T-17 yrs
D-12
S-9
S-8
B 5/08
S 1/09