Erm... I'm not sure if dangling your possible-maybe-will-happen-maybe-not feelings for him as means to make him behave more like a decent human is a good idea, Selena. He's the kind of person to take it literally, especially since he's already obsessed with you. Don't be surprised if one day he wants his "reward"...
(Also, will you kill yourself if/when you harm her, Letio? Yeah, I don't think so.)
Again, poor Rwan. xD Poor Ignis, too. Having a shitty father sucks, I know. Still, you should be more responsible and at least pretend that you don't thirst over your knight that much.