No. 6: They aren't having it as much as they'd like to
No. 5: They were cheated on
No. 4: They want to know they've "still got it"
No. 3: They couldn't say "no"
No. 2: They find their partner less appealing than before
No. 1: The love is lostNUMBER 7
They aren't getting what they really want