If the victim doesn't figure out the con after the first request for cash, the crook will keep milking the relationship for as much as he or she can get.
When the victim gets wise, the con artist gets scarce. But the increasing popularity of online dating gives them the perfect conditions to proliferate.
There are no statistics saying just how common scammers are on dating sites.
But individuals who frequent them say scams are pervasive. Match.com, for instance, includes a disclaimer at the bottom of every onsite email between members, warning not to send money or provide credit card information to anyone you've met on the site.
Then the daughter became ill and had to be hospitalized.