That was the lesson I learned after watching a TV show (up to you to guess what show).This middle-aged man had a girlfriend who appeared to be sincere but was actually all out to ruin his life. But this girl, after being with him for a while, realized that the man is really a good guy and not as bad as he was made out to be, aborted her mission and left him. This girl was actually hired by a woman who was the classmate of the man. As it turned out, the woman had a crush on him but was frequently teased about her size - he used to call her a fat pig and treated her as an outcast.What you say to others or do to them may come back to haunt you many years down the road, when you least expect it. But what's done can't be undone, just be true to yourself from now on and don't unknowingly put a dent in other people's lives, and people can forgive you for your wilful behaviour in the past as you were immature, and they will appreciate you for who you are now.