Why do women run back to their ex?

I've seen time and time again women find a good man, who they always say is perfect for them only to go back to their toxic ex. In my experience women who always talk about how bad their ex is always have something to hide. It's always her story, his story, and the truth. This is anyone interested in putting some insight on why some women run back to an ex that did them wrong so many times? Men do it as well, but it's not as often as women do it for some reason. Thoughts, statements, etc?
Why do women run back to their ex?
Add Opinion