I don't disagree that debt is stressful even in the best of circumstances. However the debt is not the ONLY stressful event going on right now. Your son is having medical issues. You and your H are learning to operate as single parents and co-parents. Your children are adapting to staying at 2 homes. You are dealing with anxiety/depression and the overall emotional devastation of being left.
You can't figure all this out in three months. IMO your H is being terrible selfish by harping on this debt when there are so many other things going on. Yes, it needs to be paid and it will get paid over time but you have plenty on your plate and you need to come first.
