"You needed to look after your health. Going with Chuck made sense." That he wasn't upset about. He'd been grateful, so grateful, that Chuck had been there for the boy while he was ill.

Someday Magneto might explain what 'it's a Mutant thing' actually means, and that those who push, who get dirty in the trenches with them, whatever their DNA, are a part of them, and that's all that mattered. At least, if Blaine ever asks.