I love my boyfriend... But

I love my boyfriend so much we've been together for 2 1/2 years and live together.  We have two pets, I'm super close to his family and he's honest, loving and he's always truthful ... The thing is.  He's not that sexual.  I'm starting to feel like we're just best friends.  We have sex usually once a month and never more but sometimes less.  He doesn't really makeover with me, and when i used to come too him all the time but he said he didn't like how aggressive I was being and that that doesn't turn him on.  I'm always restraining myself but it seems to not bother him AT ALL.   What gives?? How come I'm so attracted to him and want him but it's not the same for him?  We've argued and stuff but it gets is no where,  it just makes it worse and he says that people who love eachother shouldn't argue about sex, ever.  How is he content with this?  I mean we cuddle a lot and stuff like that but not so much making out.  When I start making out with him after a few minuteshe'll push me away and smile and then that's it.  Ugh. I've tried coming on to him, talking to him and playing hard to get.  Nothing works.   Advice please??