Husband a Perfectionist

My husband is a perfectionist thus when things don’t go his way he becomes very moody and dissatisfied with his life. I used to immediately sense that I am at fault and that I can fix his dissatisfactions.  Through my own self coaching, that is no longer my response.  I am working on accepting his temperament but find that I just don’t want to be around him at these times when the atmosphere feels so toxic to me.  I am struggling with how to not feel resistant to these episodes and seem unable to move on to a more calm demeanor.