What about the villain who speaks ill behind his back and makes waves?

I don't think you need to worry about such people. Anyone in life may meet real friends and some unnecessary people. There's no need to feel sorry for those people. If you are a true friend, you won't believe his provocation. If someone doubts you just because of a few words from others, then I think your friendship is not deep enough or he doesn't really know you and trust you. How can you be friends like this? In short, a straight foot is not afraid of a crooked shadow. After a long time, people will naturally know what kind of person you are, and those rumors will be broken. Don't worry about those things! Go your own way and let others talk!