As long as another doesn't pick on or take advantage of them isn't that just one of their attributes? It's sad but that alter should be more easy to manipulate since it's "blind" in a sense. I'd just do an "uh huh" and work around it. Hard though, as Kiya says about hers, if she's up front and others are doing SI or bad things behind her. But she'd have to not be very strong if she "sees" that happening, thinks it's herself (since she doesn't see or believe in the others) and can't stop or change it even though she's the one who is out? If there are others, stronger, I'd talk to them about switching with her when things get beyond her control? Maybe someone can befriend her like one would a little? Or is she obnoxious in her disbelief so no one wants anything to do with her?