Even when you don't understand his feelings, validate that his reality is deserving of respect and honor. Never make your mate feel stupid, wrong or somehow flawed for his feelings. Look for the good in your husband. If not, keep your mouth shut and let it go. Do fun stuff together.
Marriage can very quickly and easily become more of a business arrangement than a place of pleasure.
Aim to include one fun activity into your marriage each week. Behave like you are still trying to win your husband's love. Well even though it is impossible to always try so hard in everyday life, it is possible to sometimes pretend you are still on that mission to win that great guy's love. Understand the business aspects of your marriage. Marriage calls for business-like skills and routines.