The ow feels threatened by whatever civil communication that Trusting has had w/her xh. The ow wants to ensure her boundaries are known and her claim to fame for the xh are in plain view for Trusting to be aware of.
Trusting, you have handled your situation w/such dignity and grace. I don't know how you do it...but I'm very proud of you!
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.