Here's a virtual hug OP, straight from So Cal. (((( Hugs ))))
Okay, so I won't tell you to get divorced, but what I can tell you is that living with someone with OCD is pure hell. It is a mental illness so spending all of your time trying to rationalize with the person is just a waste of time and energy.
Your best bet is to encourage your hubby to seek professional help, he should be evaluated and prescribed medication to control both his temper and his OCD.
If he absolutely refuses to do so, then since you won't leave him, you will be stuck in the type of miserable existence that no child should ever be a part of if it can be prevented.
Good luck to you both.