^ Best Reply.

Simple,

Isn’t petty. Doesn’t explicitly say you don’t like them.

Shows confidence that their opinion isn’t important to you if they are that immature.

If they were mature, they would have explained what their beef is, and not a vague ‘don’t like you’ kind of response.

If they can’t articulate what you said or action you took that makes them not like you. They aren’t worth your time.