[Those words were most definitely meant to soothe Roxas, but all it does is make him grit his teeth, eyes narrowing even further.]

Do you really get it, Kor??

[He whirls around, glaring hard at Kor. More of that strange smoke is wafting from him, and his eyes seem to flicker between blue and red.]

You don't understand a thing about my friends! So don't give me that crap about replacing friends and having enough room in my heart for everyone! I'm not Sora!

[His voice steadily rises as he continues, until he's nearly shouting. He roughly slaps his glowing chest with one hand.]

My friends back home are more valuable than you could ever imagine! I'd still be a fragment of Sora's heart if it wasn't for our connection! If it wasn't for them, I wouldn't exist!