Hey MissingSomething,
Your problem of feeling "in-love" with him is do to the simple fact that he does not meet your most important emotional needs. Dr. Harley breaks them down into 10 categories: Affection, Sexual Fulfillment, Conversation, Recreational Companionship, Honesty & Openness, Physical Attractiveness, Financial Support, Domestic Support, Family Commitment, and Admiration.
It may be entirely possible that you don't even know what your top emotional needs are either. You would do well to learn about what this website teaches in regards to identifying which emotional needs are most important to you. There is even a questionnaire designed to help you identify them.
I really believe you can fall in love with anyone that you find attractive and likewise cause another to fall in love with you simply by meeting each others most important emotional needs. It may sound simple, but when I reflect on my past relationships of how love developed and died, it is all very clear now. Dr. Harley suggests that we need to spend at least 15 hours per week meeting these emotional needs for each other to maintain that positive feeling of love.
On another note, from my own experience, I will say: Don't mistake the feeling of "in-love" with that initial feeling of "newness" that every relationship has. That newness (butterflies in the stomach or excitement) is just an initial passion that is there and will dicipate over time. To maintain "newness" in a relationship is not possible without introducing other problems.
Forums can be helpful, but there is a wealth of knowledge contained on this website that I would encourage you to explore on your own if you haven't already.
I would start here if I were you:
http://www.marriagebuilders.com/graphic/mbi3000_intro.html