[Robert hides things about himself due to shame. Does Litchi remember those scars on his arms? The fact he sought to hide them even then is a metaphor for how he seeks to hide things about himself that tarnish that flawless, cold picture he presents to most of the world.

... This is especially true with his friends, who he is desperately afraid of losing.]

I do not think I would ever make these mistakes again, given any sort of choice at all. They were profound ones, and they did more than just destroy my relationships.

[His hand is so very shaky when he writes. But Litchi's words already mean quite a lot.]