You shouldn't go against your roommate's requests.
Marco shares a college dorm with Mike, who has asked for some privacy tonight with his girlfriend, so Marco says he will stay at a friends for the night.
Marco wants to have a place to sleep.
Marco leaves right away to go to his friends place to get some rest for the night.
Marco tells Mike that he will crash at a friends house for the night, but falls asleep at the dorm.
Mike gets to enjoy a romantic evening with his girlfriend alone.
Mike is angry because Marco didn't so what he said and now his night is ruined.