Once I was going out with someone, and her step dad had hearing problems and slurred speech.
When I introduced myself to him, he misheard my name as ‘t-rex’ yet when he repeated it, I thought he was saying my name.

This went on for two years, until finally in conversation he mentioned that my name is t rex, which led to the hilarious realisation and correction.
Apparently he didn’t question it because he thought that’s a young person thing and left it at that haha. Fair enough.