Sounds like this gentleman was overly defensive, becoming aggressive.
He's very insecure, from my viewpoint. This is a part of why he has to act the way he acts toward your critique. It does sound like he was "out of line."

I am sorry this has happened to you.

Rudeness can be a trigger for me.
I am very careful to be kind and fair; I expect the same from others, which is, sometimes, expecting too much.

I try to see how the other person was not coming from strength, yet was struggling with handling any type of criticism (or perceived criticism). This helps me, often, to see my voicing my viewpoint was just fine.

(((((( HUGS ))))))


WC