In a typical con, the perpetrator will spend weeks or even months building up a romantic relationship with a victim through e-mails, texts or phone calls, before eventually asking for money.
And many of the scammers aren't even in the United States.
The main thing, however, is that an international dating site is a place to find new friends and strike up an exciting relationship, while sitting on your sofa with a cup of coffee.
Online dating sites allow single men seeking and finding the right partner to have a family with – all this without leaving your house.
About 70% of the victims were female; more than half were women 40 years or older.
"In the process of going back and forth, a scammer is going to try to figure out what makes a person tick, what their vulnerable spots are," said Jenny Shearer, an FBI spokeswoman.
"Because a victim has legitimate feelings, they might be inclined to offer financial support for this person." For Best, it all started when she signed up for a free online dating site called mingle2.
A man calling himself "John" messaged her and through daily phone calls and messages on Facebook, he gained her trust.
He spoke with what she thought was a British accent and his picture on Facebook portrayed a nice-looking man with graying hair and a beard.
The FBI said there is no indication that the information was ever removed.