This sounds like guilt to me. I don't know what she'd be trying to do to manipulate you in this case. But since she knows you are being inconvenienced by something she has asked you to do, she's trying to make herself feel better about it by exchanging niceties.

You did good not responding.

H:39 W:30
M:4 T:9

05/2018: H says "ILYBNILWY", BD
07/2018: Discovered A, confronted
09/2018: PA + other details emerge; H moved out
12/2018: I filed
03/2019: Divorce finalized