There are 12 men who have had a lover who has had (or will have had) 12 lovers, but there is only one man who has had a lover who has had only one lover. But you should be grateful. The reason you got to be her lover in the first place is because she has had (and will likely have) many lovers. You are 12 times as likely to have sex with a woman who has had 12 lovers as you are to have sex with a woman who has had only one lover. Quite paradoxically, if your lover only had one lover, you are probably not him. And if your lover has never had a lover, you are definitely not him.