You won't like this advice, but I will give it anyway: You are wanting to do the exact opposite of what she wants. This course of action will only prove to her that you place your own needs higher than hers.
If you want any chance at all, you'll do as she asks. Prove that you can listen to her and do as she needs. Perhaps she will miss you and come back. Perhaps she won't. But doing the opposite of what she's asked will only serve to remind her that breaking up with you was the right decision.
Never regret anything that has happened in your life. It cannot be changed, forgotten or undone. So, take it as a lesson learned and move on.