It's clear that you love this woman. Your feeling comes from a deep voice in your subconcious that keeps telling you she is better than you or that you don't deserve her for some reason. Try to reframe your mind frame and implement other thoughts that say: "you are the king , and no one is better than you! all women dream to be with you and have sex with you!" and act on it. Assume it. Soon it will become part of your personality , and those little jealousy feelings will vanish. You will also become much more appealing. Alternatively you could learn how to provide her with multiple orgasms and dominate the "other" parts that are left, that she doesn't even know exist. You will be the over all king in total. By the way, did she ask you about your past pre-marriage ventures as well?