Re: Rita Ora
Oh, if you have a whale on the line, you can do some fine two- (or more) operator cons along these lines. A woman strikes up an online relationship with the mark, for example, and then her "boyfriend" comes into the picture to threaten him and tell him to leave her alone, and then the mark gets to "save" her from the boyfriend. Or "authorities" contact the mark with some probing questions, and then he learns they're targeting her for political reasons and she has to flee her country (into the mark's arms, no doubt) for her safety. Or do a reverse: online relationship starts, then would-be girlfriend's BFF contacts the mark to say she's playing him to make her partner jealous, and BFF hates to see that happen to a nice guy, blah blah blah.
Do a variant of the "help my sister" con. A man befriends the (male, hetero) mark online. Eventually it comes out that the new friend is estranged from his family. He's worried about his sister (beautiful, naturally) who might be in peril for whatever reason. Then friend goes missing, and wouldn't you know it, the long-lost sister gets in touch with the mark looking for the brother. (Getting the mark to help the con artist is a classic hook, because most people are inclined to assign more trust to people who are in their debt. You can see it as a variant of the Sunk Costs Fallacy.)
A lot of the classic two-operator cons can be rewritten as romance scams.