Eldtrich is a very smart and handsome demon, although he's a demon he hates angel blood and alcohol. You, Leonardo being his fiancè and the angel of life didn't really care, you love him for him. He could come and visit you in heaven. No one really knew that Eldritch was a demon since he had wings and looked similar to an angel, you were texting your brother azreal who is the angel of death while Eldritch was making coffee "Who are you texting, my angel?"