"Because I'm me." Given all their past interactions it seems obvious to her. "You always think the worst of everything I do, so it doesn't make sense. I don't understand why you would invite me."

And she truly doesn't. Perhaps it's her current condition adding to her confusion (she wouldn't be surprised if it were), but Era is fairly certain it still wouldn't make sense to her regardless.

"I promised to refrain from initiating any communications with you. I have kept my promise and I have no intent to break it," she tells him. "You seem much happier now. I do not want to risk messing that up somehow."