Don’t rush this relationship. If you are in a hurry you will derail the development that needs to take place. Time is required to help any relationship become all that God intends.
It will appear that a great opportunity is walking away from you. This is not true. Let God take the time He needs to align the other elements surrounding this relationship that you do not yet see. When the time is right God will bring this person back into your life and what then takes place will have its greatest impact for you and for everyone involved.