[Yes, it was a flawed system once emotions became involved, but Celestials were never intended to have emotions. Ain's guide of humanity was only meant to be just that—a guise. But no matter how much he tries to ignore it, he can no longer deny that humanity has left its mark on him.]

Ishmael forbids getting involved with mortals. My purpose is to restore the El, and after that I'll return to her. There is to be no trace of my existence left behind. That is how it's always been. To disappear, and to be forgotten.

[He's not supposed to desire anything more, but, well, here he is. Desiring.]