Once a cheat always a cheat? What's everyone's opinion

The phrase may have some truth to it, but it also suggests that people are incapable of change and remorse. I honestly think that it's not true in most cases -- people can change, it's a matter of whether they want to or not. To me, cheating is a pattern with immature people. I know such immature people who have since matured, got their act together, and become faithful, loving spouses. That being said, I've seen others who just continue to spiral in their cheating patterns.