My Dear Sweet Friends,
The idea of "fallen angel" is oh so ridiculous as to be laughable. There is no such thing, no such Angel. Who ever put this into the thoughts of men was very creative and possessed a vivid imagination.
Please doth not believe every story that is told of the Bible. If the Holy Bible was condensed unto one word that Word wouldest be Love! Start with That, Love. And stay with Love throughout all thy study of the Bible. In Love, which is God, the Spirit of God, ye shall gain the power of understanding, and power over all that is ungodly.