Omelet wrote:

> There is not a damned thing wrong with special "please don't serve"
> requests!
>
Yes, there is. Read any etiquette book.
He was out of line. His issues weren't valid or even faux allergies. You
want to overlook it because you said yourself you don't do dinners
often, and perhaps were grateful to have him over.
It is not nice to tell the hostess how she may or may not prepare
something.