If I’m not mistaken, in the Christian religion, no. They are sentient beings who are cast out of heaven and are in permanent desperation because of it (so far we agree). But as far as I know it’s out of spite and jealousy they want to bring as many people as they can with them; they most definitely know it won’t bring them happiness.
Also calling them sentient is probably misleading as they are angelic entities and they cannot change ever. They made a decision when they were created (follow God or not), and that’s that. So sentient yes, but most definitely not Human-like.