Sexual Desire vs Passion?

[Nicole E]

My husband and I have been married for 5 years. When we first met, I didn't feel that "spark" of physical attraction for him, but I knew that he was a good man, and that we had similar goals and priorities in life. The sex was good, despite the fact that I didn't feel that passionate feeling of "electricity" between us. To make a short story even shorter, I got pregnant after we dated for only 3 months. When our son was 2 months old, we got married. At the time, I had hoped that as time went on that my love for him would grow and become more passionate, but it never has. I realized that this was a problem, but it has become more of a problem for me lately - because I have found that "spark" in someone else. And please believe me, the spark is extremely strong. Now, before you judge me, let me say that nothing physical has happened between me and this other guy. He is married as well, and despite his heavy flirting, he has made it very clear that he intends to be faithful to his wife. However, I feel myself thinking about him and fantasizing about him all of the time. In an ideal situation, I would prefer to stop feeling this passion for the "other" guy, and feel this amount of passion in my marriage. My question : is there anything I can do to create a spark of passion where there has been none before? My husband is attractive, smart and our sex life is still good - He just doesn't make my heart go pitter patter like this other guy does- he doesn't give me the butterflies. What can I do?