Maintain no contact period to give them the time and space to help them realize your value in their life. Invest time reinventing yourself and doing things you like to let your ex know you are doing fine without them. Socialize and make new friends. Be active on social media to let your ex see what you are doing. Moreover, if you are in contact with them, you can talk to them about the exciting things happening in your life. However, before doing this, consider if you want your ex in your life again.