Sometimes, a broken relationship is like a broken glass.
Perhaps, it is better to toss away the broken glass into the trash bin and forever bite our tongue and hold our peace, rather than hurting our fingers trying to put them back together. It can be quite bloody sometimes.
Once broken, considered sold. No bargaining, done deal. Take your broken goods and go far away, stranger.
Some people and things are just not worth the effort and emotions we put in.
Cut the losses and move on. Life is waiting for us.