Busto,
"Happy as a clam" - now that's hard; I can act 'as if' but h-a-a-c will take some doing!

I take your point on showing him that I am happy to facilitate co-parenting in our new separate lives.

And I will do likewise with the clothes..

I had a rehearsal today.
He came over unannounced, again, and I was happy and smiling, but going out elsewhere.