Cunnilingus

My boyfriend claims he loves going down on me but he rarely does it. He says that he feels he's not good at it so that's why he doesn't. I would rather him just tell me he doesn't like it but it is unnerving for me when I give him a blow job without him having to ask but I have to ask for him to go down on me. How do I get him to be more excited to go down on me because I absolutely LOVE when he does.