She finds out

Eva: "Oh my god! Did you just do that?"

"Yes I did"

Eva: "So what about all the other stuff in the mall was that you too?"

"Yes it was..."

Eva: "So you actually made Summer get rejected by her friends."

"Yeah since you hated her so much I thought I just helped you a little bit with some payback."

Eva: "ah that's sweet.... But if you have these powers how do I know if I can trust you? What if you just wish something on me. To be honest that kind of makes me a little scared. How do I know if I can trust you?"