Talking with a friend today I found out that STBX told kids about her and OM/boss in late February just before she and OM went on vacation together. That means they had to deal with a lot at once. The friend also told me that D19 told her it was really tough on her to keep the secret from me.
Right after I finished the call with the friend, STBX called me regarding grocery money she gives me and some idea about sharing a pre-ready dinner plan. I was somewhat cold, but not rude and turned down her offer by saying "I am trying to make better meals for the kids now and would prefer to do it on my own". I did not say a word about R or anything else. I made it clear that I was not interested in talking to her. She said "have a nice day" and all I said was "thank you" and hung up. It actually felt good to not get all weak at the sound of her voice. I'm sure it pissed her off, but what can she do? She can't possibly hurt me any more.
The call was hardly necessary, so it seems like she called just to see how I would react. She probably had a fight with OM recently and needed some ego boosting.
And earlier today I posted "I wonder if STBX will ever contact me". Well she did, and it really didn't matter. Right back to dark I go.......