So if you really are emotionally available and have left the baggage behind, let him know that. Suggest that you two take things slowly in order to build up trust and to demonstrate that you two could create something special if you both keep your hearts open. Be open, honest, and vulnerable, and communicate your feelings. He'll either open his heart and let some of the armor fall away or he's not the right knight in shining armor for you. Don't pursue him.
Men are the pursuers.
Women are to be pursued.