Contrary to many posts, i think that the cousin is a rude person. AND i think whomever passed on the information is causing trouble.
What good came from this knowledge? They both sound like a couple of ill mannered twits.
Some people are introverted and some extroverted. Of course the louds are going to consider themselves better, while quieter people slink into a corner.
I can talk the leg off a chair OR be the most quiet person in the room. My dd is selectively mute at times. Clamming up is selfdefense.
I don't mind quiet people bc i think that they are not offensive. Loud people on the other hand....
I think, OP, this commenter who passed on the slam was trying to hurt your feelings and the other one, as you say that you're polite, is a dope.
Afterall, we don't exist to fulfill another person's criteria for talking. It's like saying they don't like you for being tall or brunette. Is it your job to entertain the cousin? Have they made any effort to hold a conversation with you? I bet not.
Frankly, the only people who ever complained about my quietness were people that i did not admire sufficiently; according to them.
AND I've tried having conversations with extroverts who rudely ignored me in a power play.
It's not being a quiet person that's rude, it is using silence as a social weapon that is passive aggressive.