Most villains are the type readers love to hate, but a rare few inspire actual compassion. Some have been treated like garbage their whole lives, others are consumed by jealousy, and quite a few are just plain charming.
To begin with, he talks to you - yes, you. Not at you, like most soliloquisers, or to everyone in general, or to himself (Hamlet being the best exemplar of that). It's as if he's putting a hand to the side of his mouth, drawing you close.