Issues with the fiancé.

My fiancé and I have a 7 month old son. My fiancé has to wake up at 5:30 in the morning so he goes to bed early. He gets furious if our son isn't in bed and sleeping by 9:30. He tells me I need to get up earlier than our son wakes up which ranges anywhere from 8-9. And if I don't then I shouldn't allow our son to take a nap during the day.