This is in anything. Don't want to take the vaccine? Gay/Lesbian? Hold a viewpoint or political view? Don't support abortion? Don't want to bake someone a cake? Don't like guns? etc?
You don't have to justify yourself to anyone. If you feel like you have to explain yourself, you lack integrity and need to re-examine yourself and where you are in your life and society.
Also, no one owes you any explanation. No one owes you any justification for anything. Stop being totalitarian thought-police. At the end of the day, you should be worrying about yourself, not Joe or Jane down the street.
conflict resolution is important to any healthy relationship, though