I don't want too because I heard she vanishes from the game if you dismiss her.
With any possible game-killing glitch, confirmed or not, if I hear it happened to somebody I always keep the glitch in mind. For example, I save before Vampire side-quests or before dismissing a follower just to make sure I'm not leaving my back-side exposed to the Molag Bal of game-design, fatal and unpredictable glitches (anyone like the reference? A little crude, but I hope it gave you a chuckle.)