Who's Got Your Back

A woman didn't come home one night. The next day she told her husband that she had slept over at a friend's house.
The man called his wife's 10 best friends. None of them knew anything about it.
A man didn't come home one night. The next day he told his wife that he had slept over at a friend's house.
The woman called her husband's 10 best friends. Eight of them confirmed that he had slept over,and two claimed that he was still there.