Too bad I am a selfish person magnet. I’ve recently said to myself “no more”. They will have to find their own way. I actually agree with the retaliation. They need to see how it feels to be the recipient of such selfish behavior. Just once or twice. No, you don’t have to stoop to their levels, but they will be so thrown off and will not understand why you are not “being yourself” b/c you are usually so nice and let them wipe their feet on you. Being that they are selfish, they will not change. It’s just their character and it would be VERY hard for them to change especially if they are older. After giving them “a taste of their own medicine”, leave them right there, dumbfounded. Walk away and carry on and live…without the mess. I have moved on…negative and selfish people have been let go….slowly but surely gone.