Only contact him if it's an emergency. Contacting him can be considered pursuing. It's best to give him plenty of space and time. When he's ready, he'll contact you and when he does, treat him as you would a friend. It could be a day, a week or a month or so...but he will contact you. If he doesn't, you continue to move forward and live your life, but they do tend to contact us at some point.
