I'm sorry to hear this has happened...
I've been reading with her for 6 years now and she's been right 90% of the time. She's been really the only one whose predictions have panned out at all for me. As far as timing goes with her, it's not always on point for me.
I guess the argument is that psychics can't always accurately see timing because of all of the different factors that come into play to affect that, and unfortunately sometimes they are right and then they're wrong after that. When a psychic is wrong for me on timing or on a prediction, I just don't ask them again. Same goes for her. When her timing or prediction has been wrong, I don't ask her the same question again.