The less words the better. Be distinct and to the point.
"Bye!" with a huge smile works great.

All the changes that are required WILL FEEL UNCOMFORTABLE at first.

HUGS

"What is best for my kids is best for me"
Amor Fati
Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712