Nah her school. and sometimes at our youth group.
Seems better than dating sites. Cause most guys I know don't go on there to find a girl friend if you get what I am saying.
Some people just get infatuated way to easily and it can get annoying. More so when they want you to meet the guy and be friends and you have to hear all about it. Worse when you know the guy is a total ass. Gets worse still when it contradicts everything she has ever told you. Example: say she tells you she doesn't like guys with tattoos, and then she dates a guy practically with them.

Just let it run its course, as long as she isn't doing anything to stupid or dangerous then let it go.