What is an average amount of sex a week?

Rachel

My fiancé and I have been together 13 years. But over the last 5 years all he thinks and talks about is sex or his penis! I work 40 hours a week I get up and get his kids around for school take them to school go to work come home make dinner clean up, while he gets to sleep in and do what he wants to during the day. By 11:00pm I’m tired I do have sex, but I don’t get moody if I don’t. On average we have sex 3 or more times a week. And he is complaining. If he had it his way it would be 2 times a day. So what is average? Is there something wrong with me I don’t have the sex drive he does? Im 33 and he is 38.