Rune's Riddle

Was he weird just because he knew what other people were feeling? So maybe it made them squirm because they couldn't lie to him, but that was their problem, right? And he had always been like this; his brother too, but Seth could hide it better. But Sara might be his one shot at a normal life so he was really trying to hide the empathic thing. She wasn't fooled, but she hadn't kicked him out. But then the nightmares started, and his grifter grandmother popped up and warned Sara not to have kids with him. Ever. Three strikes, and Rune Hadsar was probably out. And Sara didn't even know about the freezing up as some other guy's life played out in his head. So he had concerns about losing her and maybe going insane. Did Seth having the identical nightmares mean he wasn't? But if not, then what was happening to him? To them?