An Act of Self Love
It is an act of self love to refuse to see anyone who you know will break your heart. It is an act of self love to not knowingly allow anyone into your life who does not consider your needs and desires to be important to them. It is an act of self love to allow only people into your life who have your best interest at heart and will treat you will love and respect.
Otherwise, you have to think seriously about letting them go for you do not want to spend your life surrounded by people who cannot love you because they don’t have their own self love.