No sex bad attitude

My fiancé has never really been one if those guys that wants sex often. We've been together since we were 16 and every other guy I knew at that age was trying to get some but he has never been that way ever. My sex drive is like way off the charts and his hasn't even hit the chart. I've tried everything from talking to him about it to trying to spice things up we're he can resist but still nothing. If he's not in the mood it's not happening but he's only in the mood three or four times a month where I can be in the mood everyday. It's gotten to the point were I've given up on sex and having kids all together. Am I wrong for getting upset that he doesn't want sex as often as I do.