Dude's bipolar!

That's for sure, and he's off his meds. If I invited a "friend" to dinner, and said douchebag started immediately insulting my female guest, I would invite him to leave and not come back. I would do this quickly, to keep my wife from using the carving knife or a wine bottle on him. I don't care if he's the most talented writer since Bill the Bard of Avon, he wouldn't be welcome in my home or as a friend after a disgusting performance like that.

Exactly! That was soo rude and unethical of him.