How to apologize correctly. This is phrased in the context of marriage, but I think these rules of thumb are important for any kind of relationship with another human being. I struggle with a lot of these; it's a harsh, but nice, reminder to be a better person.
And I doubt you'll ever say sorry for all the horrible things you have said about wether true or not cause again you lack any type of compassion, honesty or integrity cause only you matter in this world. But that's ok. It looks like karma is taking care of all the horrible things you have done.
To forgive is Divine. To forgive the same thing over and over again is weakness. When Shawn (my former husband) cheated on me for the second time with a second woman, it would have been so much easier to forgive him, stay married and move on. It took much more courage, much more bravery to leave him, leave my "perfect" life, to move on, and to have more respect for myself. Have I forgiven him? Yes. Of course I have. Does that mean I had to stay married to him? No.