WH, I hate to see all of the bickering, but for the mlcer, this is par for course. They are just emotionally unstable and can't think rationally and all of the selfish, self absorbed behavior comes to light. Never mind that a large majority of the money was spent on the children and transportation needed to take the children to and from appointments and games...but they see it as you using the money for yourself. You can't make this stuff up and it's very sad how they destroy everything that they held close to their hearts at some point in their lives. The only thing you can do is step away, allow them to fight w/themselves and pray for them. Poor souls.
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.