Why won't he have sex with me anymore?

Ladies I need some help. I really feel like I am not physically appealing to my partner anymore. I always have to make the first move and most of the time he just finds ways to get out of it and ignores me while I'm coming onto him. Idk what to do. I'm not sure if it's just that I have a higher sex drive, that he doesn't find me attractive, or if it's something else. Any comments or suggestions would help.