The short version is that we're from a not so happy place - he and I and the rest of our family. I think he just couldn't deal with the stress of the reality we lived in, so he started lying about things. Like he was trying to build a new reality for himself, I guess. One where things worked different and he was a hero who could change everything that was wrong with the world. He was far gone enough that he already wasn't acknowledge us as his family anymore even before we came here. I'm not excited to see what this new place does to him.
[drink it up, idiot.] [His face is an expanse of placid, glassy water. Calm and all smiles and soothing low tones. No piece of him betrays exactly how gigantic of a lie every scrap of that speech was.]
It might be genetic. His twin Cain has similar problems, but he isn't quite as detached from reality as Rion is. Cain at least still recognizes me as his big brother.