Your man will open up to you completely if you make sure he feels safe with you. You need to show him that you care about your relationship like he does.
You need to show him that you are in it for the long haul, that he is not just some casual thing, but the real deal.
He will feel secure and therefore loved when you touch him and show him intimacy. He will feel secure when you stand by his side for better or for worse.
He will feel secure when you support him and the things he does. He will feel secure when you show him you trust him.