I hope my ex is cheated on
Why, because you want him to feel the same pain he put you through?
Yes. It would serve him right.
It is understandable that you would want someone who hurt you to feel the same pain you do. However, thinking about your pain and wishing it on others will only make you continue to feel bad It is better to put it out of your mind and move on.
Fuck that. He needs to feel how I felt.
I think wishing him ill-will is a waste of your time. You should forget him and move on with your life.