Yeah, I do too, but I've got one more thing about Vriska. Damn bitch monopolizes every story she comes up in.
Maybe if Tavros didn't want to get crippled, he should have put up a less pitiable defense against Vriska's mind control.
This was always a constant problem, and it's sorta why I can see Vector not seeing any redeemable value to Vriska. This argument came up when both characters first appeared, and it's still around now. It's just as infuriatingly retarded as it always was.
Ah, but there you're tripping over your own explanations. That wonderfully horrifying "defense" of what she did to Tavros is exactly what was going through her mind, because that would be perfectly acceptable and expected in their view of the world. The dichotomy that is Vriska's character development hinges on the fact that she never really believed that herself, that she honestly thought she was helping him and wanted to, but was too experienced at being callous and too addicted to being callous to stop herself from really hurting him when it counted. It's actually a pretty classical character flaw, uncontrollable temper, bloodlust, pride, and entitlement constantly fucking up her attempts to be a real friend.
Will she learn any self-control that lasts, if she wakes up? Who knows.