REGRETS

No matter how hard you can regret it, it will never change. The narrator regrets the decision he took 25 years back. It was not his fault, he was not guilty. But nobody knew that but himself only. He was punished for the sins of another man. He was punished for no reason.
Gregory was just trying to start a family and make it happy. He was willing to be a man. But then he regrets his decisions. Let me be quiet, It's just life where you have to expect the unexpected. But always stay positive.
You'll enjoy it.