Arden was simply planning on never using her powers! Easy-peasy! Just don't do the bad thing!

Wait, what do you mean that wasn't how it worked?

"Yeah," she agreed quietly. "I just keep thinking how stupid I am. To keep throwing my heart at things when it's only ever gotten me hurt. Having all of you as friends and wondering when it's going to end. Because it's gotta, right? Nothing can be this good forever. Wondering what I'm gonna do or say that'll make everybody realize that their lives are better without me and when it's gonna happen. Sometimes thinking that maybe I should just do it now and get it over with, so at least it's not hanging over my head..."