Gabrielle can't stop but to reminisce about the moments when Megan was still an angel. Everything's perfect back then. When she was created, Gabrielle was the one who was there. He was given the tasks to take care of her and make sure that she will stay with her mundane tasks in heaven.
But Gabrielle sees her potential to become an archangel like himself. She trained her to fight evil and even make her become a guardian angel. That's his mistake because he assigned her to be with a homicidal maniac. Lucifer has taken over that human because he's just bored staying where he should be.
Megan was able to protect the human and even turn him to become a good person. The problem is, Lucifer got interested in her. He seduces her and she almost went to hell because of him. Gabrielle was able to
