Could you tell her you sent the info when you in fact did not?

She would be shaken to the core, and possibly stop the PA.

I'd do this after custody has been decided...

M46, EXWW46
M15 T17
D20, S19, D13
M - Addiction since 1998
W EA/PA #1 2013/2014
W EA #2 June 2015...
BD 1 Big D talk 9/15
BD 2 - EA/PA disc 10/30/15
Served D 1/22/16
Divorced 5/25/16 (yes, that fast!)