He was out of this world

I met him at noon, at the most lovely place in Western London. A boundless sea of flowers, where the finest and most delicate men and women come to spend their time. I was reading my book on the psychology of man when I saw him. He was as radiant as can be and looked as if he didn't belong here, as if he didn't belong anywhere. He had luscious blonde hair, blue eyes and this fascinating aura around him, like an invisible force that was pulling me toward him. He was incredibly beautiful, and I just had to go meet him.

I walked up to this mysterious man, and asked him if he would like to share a cup of coffee with me. This man was pondering for what felt like an eternity, and finally said yes. That's when I realized that something was off about this man. Actually more than off, I felt like death stared straight into my soul when he looked at me.
We walked up to my table, when I asked him those fatal words.
"What might your name be?" I asked
"You wouldn't want to know." he answered
"Why not? You have the most wonderful appearance, I must get to know you better!"
"It's not something a simple mortal should bear with them."
"Pardon?"
"A mortal like you shouldn't have to carry the weight of my name with them."
"You're my guardian angel, aren't you? You're as beautiful as they're depicted in literature."
"No, actually the opposite, you've managed to annoy me so much that I might as well start a day early. My name is Lucifer, and I've come here to show God that the human race isn't worthy of his attention."