But how the fuck

I know dude said he lacked emotions before meeting the MC, but I feel with how expressive he's been from the start, that hearing what the MC went through would horrify him. Also how the actual fuck was his ass clearly mutilated, them eating his flesh and yet we've seen him naked and I can't recall any major scars??? The creepy cult story is what's keeping me coming back to this really. Although it's confusing, but I could care less at this point of who could be end game for him since all of them, dead or alive seem like red flags.