You get what you give
When it comes to how you’ve treated someone, the truth might sting, and being called out on it can be painful. But at least this individual knows how to communicate their feelings rather than stuff them down. Get out of the kitchen if you’re not up for the task.
And, you know, it’s always better to avoid treating someone badly in the first place! Seriously though, this response was perfect. This person likely felt a great sense of vindication from it, without having to be nasty themselves.