WH, Well, if she should show up, smile and be courteous and then find a seat somewhere they won't be sitting. Oh, yeah, your h is definitely hoping that all of you can be friends. Just like a bunch of school friends all huddled together.
Good luck!
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.