No Sex

Help I’m at a lost we have not been intimate since November of 2017. I have done everything to make it happen but always get excuses I don’t know what else to do. For him he doesn’t see the issue but I like sex I enjoy it but it is making me feel like either he his hiding something or no longer finds me attractive. I have been watching my weight and going to the gym about 5 days a week. I get attention at the gym so I don’t think it’s my looks I don’t know what else to do please help me.