For her to leave, it had to be another glimpse she received. She has certainly been getting them more often now, wasn’t she? Either that or she was getting better at controlling it. Mages seem to think that those with the future sight had no control over it. To a degree, they were correct when referring to prophecies. But if the person has fey blood, they have more control over it. They would also have more control over general premonition. Which was most likely the case in this event. 