Most Helpful Guy
Well if your trying to win him back I would suggest not making him jealous. That can severely complicate things. Just have a talk with him about how you feel.
Most Helpful Girl
You don't that's kind of the point. You just let it go and move on with your life. I think trying to make your ex jealous is childish in my opinion and a waste of time when you can be using all that time to heal and focus on yourself. Its immature and childish, just move on with your life. Talk to other people and live your own life.