What a great job you did. I dread the days when OW starts to show herself at DD and DS events.
Recently my sister got married and many eyes were on her walk down the aisle as my divorced parents each gave her away. They have perfect poker faces as my father always wished it, guess I wrote that just to say I can appreciate your post.
Don't forget, we don't know the lies our IL's are told by the x and ow/oms. I don't really know if it's something you did, rather, what's in her head.
FWIW to add that mine are even angry because I can't hang around with them lately-x is still lying about me as we go through court process and she enjoys all of their occasions.
I hope to have the composure you did.
A person is a person, no matter how small. -Dr. Suess
Perserverance and spirit have done wonders in all ages.