Someone that at the beginning of the relationship seems like the best guy ever, but the more you know him, the more you realize he's narcissistic and plays with your head. When you'll realize your worth and explain other people what he's done to you, they all hate him and wish to kick him where it hurts.
Someone who ignores your existence in public but is nice enough to keep you interested in them. while also confusing you as to if you like them as a romantic interest, a friend or an arch enemy.