Thanks, Annabel. I know I've tried, and I know she knows I'm here if she feels the need to talk, so I feel like I've done what I can. I have actually been successfully not worrying about it.
Our "date" is a week away, so I think it will be interesting to say how she acts when it's just the two of us going to the play together. She didn't want my sister along so that we could act freely, so I'm curious to see how she will choose to behave when we are in public together without our husbands.