Catra remains confident that she needs no help, that she wants no help. That what she wants is to run far, far away and disappear from people's lives because then they will be better and happier for it. This confidence is brittle, a veneer painted over the deep, deep well of pain and anger and grief that has been roiling in her for years. It only really got bad when Adora left, but that thought has never been far from her mind. How could it be, when all her life she has been told that she is worthless, that she is nothing, that without Adora she'd be tossed aside like so much trash? There is a small voice, urging her to tell Setsuna that she's sorry, that she didn't mean it, that she's just angry and in pain and hates Planker and this whole stupid place, but not Setsuna. Setsuna has been kind and understanding and she's just a kid.

In the end, though itt's easier to hide that. To be angry. To lash out. To cause pain in others before they can cause pain in Catra. So instead of doing what the little voice in the back of her head says, she just takes a few more ragged, painful breaths and then steps towards the final chamber.

"Come on."