R.K.
I'm going through the same thing :) Mild bipolar - with the mania coming through as extreme anger and irritability. I'm there.
I want to recommend my psychologist/therapist. He's really down to earth and easy to talk to - my husband likes him after meeting him once, and he doesn't really believe in all this psychiatric stuff (he doesn't understand it all basically). His name is Jay Ruebel, and he is in Southlake. They work with kids and adults, and has been helping me for the past 4 months. Just recently I went to see Dr. grant to be put on some medication, but we're still working to find the right meds for all my symptoms - anger outbursts and the depression as well.
Good luck - and assure your hubby he's not alone.
R.