Most Helpful Girl
People who cheat can change but in my opinion unless she has hit the stage in her life where she is ready to settle down then it's unlikely and it's probably more likely she wouldn't cheat on someone she hasn't already cheated on before... not that things couldn't work out for yous... who knows.
Most Helpful Guy
From experience, no. And not to be too much of a downer, once a cheater always a cheater. You can go back to her, but DON'T get your hopes up. I've been cheated on twice.1 of them dated my friend after and cheated on him. She said she won't do it again, but yea, she did.
Hope this helps