My most favorite quote of ALL TIME by Tupac, should read ".or you can just leave the pieces on the floor and move THE FUCK on." explicit but rolls off the tongue better once you finally get to that point.
If they can prove to be trustworthy and show they have changed then there is Aways hope of reconciliations. 9 times out 10 it does not work though. Trust us so hard to build back up and betrayal is a pain not easily forgotten.