Internet relationships seem to have the power to convince us that we effectively live next door to each other and can't get away from persistent people. That's possibly why so many otherwise intelligent people get sucked into social-media cons. Ziggie, I do understand isolation - I really do (been there, done that, still wearing the damnable T-shirt). But the thing is, with a person who's known to be a fantasist and a liar, isolation from her is just what you need. You live far enough apart to keep the friendship cool or, alternatively, to stop it completely. There are plenty of other, more genuine, people out here; you don't need to sit where you are and put up with this unhappy situation.