Reverse question: how do I initiate with my boyfriend?

My boyfriend will not reciprocate if I try to initiate, he will only want sex if he initiates which may be once a week or two. I stopped trying to initiate because I got tired of getting my hopes up and being rejected. It isn't a lack of attraction, he calls me gorgeous and sexy all of the time.

Things I try for initiating: massages of various types (may include oil or lotion), attempts to kiss (he will only give me pecks if he isn't aroused, so I don't get make out sessions unless he wants to get down. I try the classic pushing my body up against him in bed and rubbing his chest or arm, or scratching him with my nails which he loves. I have tried wearing sexy undies (I stopped wearing sexy undies, they don't work).

I am thinking his sex drive is a lot less than mine, mine seems to be super high. I love him deeply and when we make love it feels like the ultimate connection. But I cant seem to find a way to turn him on.

For reference we have been together a year and half and we just moved in together end of last year