Kyh, you are doing very well. You've got a lot on your plate and need to rest when you can. I think you did extremely well when you were telling the kids the truth. You honestly don't know and why make up stories that would build up their hopes.
MLC is not a sprint, but a marathon and there are many times that we question what we are doing, i.e., is it right or should I do something different? The only person that can answer that is you. If you want to try something different, start out small and if she reacts in a negative way, don't try it again.
Dig deeper for patience. Please take care of yourself.
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.