You said former as in used to be. He you want him in your life okay, but if you do not you may have to learn from the mistake of having that friend in your life, and keep jogging on. People tend to take advantage of people that seem desperate for them.
The best thing to do is love yourself and work on your life and making it better. There is always room for progression in this life, that goes for us and our day to day lives. I do the same.