Serenity is much more important in your life ManicMe than to continue to deal with this
trigger. I agree with the idea that you might want to let your husband deal with him.
Just avoid him at all costs, in my view. And plan how you're going to do that!

Take care and try to be calm; he's the one with the problem; let him clean up his act.
(A little maturity wouldn't hurt him one bit.)

Take care; you're doing mighty well not to be taking meds, but then one writer says
that there isn't any psychotherapy can that do more than prayer and meditation can do. I rely on them heavily, also, and take only a minimum of meds.