My great dane is very jealous of me with others - any others. When DH and I hug, my dane will get up off the couch JUST to try to squeeze in between. If my son does a playful jab at me, my dane thinks it's serious, and will bark at him and whine a bit. Your roo raising his hackles sounds like that - like he was being protective of you. If he'd jumped up and tried to spur your DH (and the D isn't "dear" in this incident), then I can see booting him (although he obviously was reacting in anger and not self-defense). But not for raising his hackles. Doesn't take a psych. to see that your DH was ticked and took it out on the roo more than he normally would have had he not been ticked. It bites that he hasn't said something like "Sorry - didn't mean to kick your rooster so hard" or something along those lines.
That aside, if you didn't see any injuries, I'm sure your rooster's pride is hurt more than anything else. And you were standing there when he got hit, so he's probably partly associated you with what happened. Treats and just hanging out sweet talking him will win him back most likely.
