Zoosk.com – “Accidental” email invitations to steal money from people

This happened to a friend of mine. He was sent an invitation to join Zoosk.com and he thought that it was an accident, but joined anyway. After talking with this girl for a while, she then made up some story to get money from him to travel to see her grandma. She kept saying that it was important and they would meet soon and he almost sent the money.