Sunflower had asked for her to ignore her condition. It was a difficult thing to do, but Twilight was determined to make the effort. Still, it nagged at her, incessantly. How did it happen? What, exactly, had happened? Why would Sunflower not want a cure? Why didn't she take every opportunity to fix it? And, even more so, what was she hiding? Any questions about her life before Ponyville were answered either vaguely or not at all. Trusting your friends and respecting their boundaries was one thing, but this was bordering on the ridiculous. 