Sex appeal

Honestly I've been struggling a lot lately with my confidence. It's something I never really had an issue with before. My boyfriend is really sensitive and a sweet pure guy and he's just not really into sex (I was his first kiss at 19 years old and he never had an interest in sex before). We do have sex often but I feel like he doesn't look at my body the way a man should or touch me with intensity. It honestly just makes me feel really ugly even tho he never says anything to me but compliments. But honestly he doesn't ever look at me like he's craving me or any sexual tension between us and it's draining me. I've started ready intimate novels to try and fill the void but I just don't feel like I'm sexy to him. Idk how to fix this because you can't make someone desire you and he's such a sweet guy that I know it would hurt him for him to know I'm feeling unpleasured but I can't help myself. What do I do?