NM you said: "I was particularly aware of my desire level, and found that when I paid more attention to how I moved (stimulating various parts of my vagina by rubbing against my H's genitals) in order to feel pleasure, it heightened my interest. You might say, um, YEAH, of COURSE. I should point out that in the past, I have felt inhibited to move in order to heighten my own pleasure."
This is your KEY, honey. THIS is what he means by "exciting". When your body is excited, it wants to seek its own pleasure, and seeing each other be excited is exciting!!!
Keep doing THIS thing you did with the rubbing! Here is your gateway into your own personal sexual self.