Yea, they do some really crazy things in crisis. Adopting pets, leaving pets behind, leaving children behind, raising the OP's children, etc. Apparently she wanted some recognition and this was a good way to go about it. Maybe she was lonely, but whatever the reason, you didn't need to know about it.

Yep, time to filter out your FB friends. The friend may not have realized that you didn't want to know things and thought he/she was doing was keeping you abreast of your xw's antics. I'm glad you advised this friend not to do it again. They really don't stop to think about all that we've gone through, but once you set them straight, they usually don't do this kind of thing again.

Hang in there!

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.