Imaginary.

The lonely mortal (Original Stella), really wanted a friend who loved her for who she is and not expect her to be perfect like her clones in the Heavens. Since all her Enochian friends had ulterior motives for being her friend (they wanted to gain something from their friendship with Original Stella), the lonely mortal realized that she has no real friend. So she imagined one...one who will only be in love with her and no one else. And his name is Imaginary; the last imaginary friend.