Jenna didn't understand what demon was dwelling in her brain. Until she became this stupid and asshole. She could probably be said to have crossed the line that Blake had given her. Or even because Blake has never put a limit on what she wants, Jenna has become reckless.
What she is doing now seems to be a form of soul rebellion that she never allowed. All this time she was restrained in such a way that it eventually became like a ticking time bomb, exploding when it was time to explode.
Maybe now is the time to explode.
What she had been holding on to for so long, finally had to let go. And what purpose did she come here for? She didn't even know for sure.