Most Helpful Girl
I think exes often come back because they don't realize what they have until it's gone. Or maybe because they never really lost feelings for there ex. Or maybe they just don't know what they want, and just like the idea of being in a relationship with that person. My ex has already came back to me twice, and I had to make it clear to him that I had already moved on.
Most Helpful Guy
Sometimes but in my case never, and thank god.