Jealousy is a wicked little mutant, a very confused mental distortion. Hostility is pretty straightforward. It's basically deluded, and there's nothing strange about that. Even attachment is straightforward. But jealousy is a weird mixture of hostility and attachment together. Jealousy attends to something good, and says with malice and hostility "I can't stand that you have this —" and then adds, with attachment, " — and I want it." Jealousy punches with one hand and pulls with the other simultaneously.
— B. Alan Wallace, The Four Immeasurables