A person that they always come to rescue, riding in on a white horse, shield in hand to save the day of someone who isn’t going to be thankful, isn’t going to ride off into the sunset with you on your trusty steed, and can’t even manage to bake you a lousy cake for risking your well being, your mental fortitude, to save them. At least Peach has the decency to cook and put on airs.
It’s just something about hearing the name of the person that broke your heart that hurts so much. The memories start flooding in against your will. You keep forcing yourself to put a brake on all of it - commanding your mind to just erase it all, but you can’t. It’s like the relentless key to your box of dark, unbearable memories. Substituting their name would be okay, but the actual name, it hurts more than you know.