I think it's nice that your SIL has invited you and the children to visit her this weekend. A very nice little trip and one that your h can't complain about too much since it is his family. Go and have a wonderful time, if you and the children are feeling up to it.
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.
