The saying, if you love someone let them go is very true because if a person stopped loving you, you should stop loving that person too. It doesn't matter why the relationship ended and whose fault it is. All that matters is that you let go of a person who wants to leave so that you can focus on people who love you/deserve your commitment.
Realistically, These days people do NOT know the meaning of TRUE LOVE. The mentality of “I’m not in love with you anymore”... has become accepted by society. When you LOVE someone... You don’t stop, ever. Even if they don’t love you. You will still want what is best for them. Even if it’s NOT with you. If you stopped “LOVING” someone, YOU were NEVER in LOVE.
You can love someone and not want them to be a part of your life A few years ago, I made the difficult decision to leave someone I loved because my relationship with that person was one-sided. One day it was “come here I want you”, and the next day “I don’t want you because I don’t know what I want”.