So after sleeping on it and thinking about this meeting in my head, I'm just about 100% on Vriska's side.
(Vriska) has done absolutely nothing in the way of positive character growth since she found the superweapon. Her friends had enough of her shit and abandoned her, and Aranea ruined an entire timeline on purpose. Both of those showed her how damaging her attitudes and actions had been to that point, giving her ample opportunity for reflection and the afterlife provided lots of time for change.
Instead, she ran away from every single responsibility she had. She didn't use the superweapon for anything, didn't try to pass it on to anyone else who would. She didn't take the opportunity to reconnect with her friends or try to make amends in any way like Vriska did with Tavros and her renewed friendships. Instead, (Vriska) ran away from everything with a stranger, and made Meenah into a living emotional crutch, becoming completely emotionally codependent in the process.
Reading commentary elsewhere actually disturbs me when people adamantly believe (Vriska)'s emotional state is positive character development, when she's actually regressed to an even more unhealthy and imbalanced state than she'd ever been in before.