W. Churchill — when the lady, no person’s doormat, informed him with prim asperity that he appeared to be woefully inebriated — made the anecdotally famous reply that while, yes, yea verily, he was indeed inebriated, he would the following A.M. be once again sober, while she, dear lady, would tomorrow still be hideously and improbably deformed.
Here we know that Joelle wears a veil because she is hideously deformed. Once she was pretty but after the "acid incident" she has been deformed. We do not yet know what this incident is and how or when it occured.