Great explanation. You dissected those topics well.
While love is heart to heart thing, lust is a just a temporary feeling that is based on what the eyes can see.
Desire can involve love and lust. When you love someone, you desire to have an intimate relationship with the person, while lust is a desire to just have sex with a person out of just physical attraction.
RE: WE155 - MY OPINION ON THESE THREE EMOTIONS