just curious. Why do you need to "respond" to her jibes at all?
Stay focussed on your son. Positives about HIM and not a lot else -- she's too busy fuming/festering to react with ANYTHING from you but negatives.
Go dark, on her anger at least.
((( )))
M: 57 H: 60 M: 35 yrs S30,D28,D19 H off to Alaska 2006 Recon 7/07- 8/08 *2016* X = "ALASKA 2.0" GROUND HOG DAY I File D 10/16 OW DIV 2/26/2018 X marries OW 5/2016