1) Before you accuse someone of having treated you like shit, look very carefully at your own actions as well. "Let he who is without sin cast the first stone."

2) No one makes you do anything you do. You have a choice in how you act, always. Unless there are life-threatening circumstances or psychological imbalances involved, there are no excuses an adult can give that aren't just that, excuses.

3) Don't strip people of their dignity ever; either your own, or someone else's.