Glacius' double pauses, surprised and moved by those earnest sentiments--they were something that he thought a creature like him would never hear again, and even if the only reason he's receiving such kindness now is because he's preying upon a bond that technically belongs to someone else... he can't help but want to hold onto it for as long as he can. Besides, does he not deserve this as much as Glacius does? He didn't ask to be created a mockery, he wants to feel valid again...

"My mind is... troubled," the double admits, feeling his walls come down around Carlisle in that old, familiar way. "Tell me... have you ever felt that you have been treated unfairly for circumstances beyond your control?"