Relationships end for many reasons. Sometimes the reasons are mutually recognized, and both people agree that ending it is the right choice.
Even for these amicable and desired types of conclusions, people can still experience shame and regret at some point in the future.
Relationships that end in divorce, or when addiction and abuse was a factor, can also end with shame and regret. In abusive relationships, the abuser is often very manipulative, creating feelings of guilt in the person who ended the relationship.Read more on psychologytoday.com