MrsH, I am sorry to hear about the offer...however, if they take your counter offer you can have your realtor tell them you can not move until January...it is not conducive for you to have to pack, move, go to school, get the boys to school etc...and try to move. That can be written into the purchase and sale agreement. If JA gives you trouble then tell him to pack and move you himself!!!
If they don't take the deal, then you stay in the house longer until the next buyer comes along. Houses are priced so low and there are a million for sale right now...these interested buyers may find something else for lower the price.
I hated when I had those dreams!! You are right, your mind is telling you to release the anxiety!! Go for a walk or start raking all the fall leaves...or drink wine!!
I know I keep saying whatever happens, happens for a reason and you will be ok...but I really believe that!! You are going to be far better off than JA any day of the week! Why? You are a good person, you care about others, you are a great mom and your boys love you dearly.