I experience the same things.
Are you on meds? If you are, you may not have the right combination.
And if you aren't. The meds should help stabalize your mood.
When I get into my bad mood, and me and DH argue, I say the most horrible things. And then I usually spend some time depressed about what I did, But I also agree that sometimes I don't realize I'm screaming, or what I'm saying.
I'm also not on meds right now, so that's a HUGE contributing factor.
Is he aware of how BP works and what happens?
Have him really read up on it, or even come on the boards so maybe he can get a better understanding of it.