Really some people need to grow up

So I was dating this women but she acted more like child. Well I guess I would say it was more of a friends with benefits type of deal. And I had this friend who was just my friend well of course I introduced them to each other cause I wanted us to all hang out and chill. Well that was a bad idea on part, because a week later the friends with benefits ended and three days later they where together. They now live in another state thank god cause now I don't have to deal with them. But they think its fun to start drama and send nasty messages to me. But that is ok because I am the bigger and better person for not stooping to their level. It just really shows who you can trust to be your friends and who you can't.