Cutting someone out of your life isn't always a petty overreaction. It's a valid response to a repeated violation of boundaries. Regardless of your relationship to a person, remember that you don't have to tolerate blatant disrespect. You don't have to allow the title of "family," "friend," or "significant other" to excuse unacceptable behavior. You don't have to entertain any connection that thrives on one-sided ego satisfaction more than it does on reciprocal love, care, and consideration. Their reactions to your decisions might leave you guilty, sad, or angry, but hope that doesn't stop you from doing what you know is best for your wellbeing