I'm sorry this is happening but it is par for the MLC course. And no it doesn't make you a DB failure. Keep your focus and you and your kids, they will really need you while your W is out in MLC land. I like your list of goals, they focus on you GALing and your kids. Unfortunately there is nothing we can do except take care our ourselves while our SO is set on their path.
If you haven't already go speak with/retain a good attorney asap. Shop around if you need to.
