Regardless of blame, Hank now knows that Cerebro has affected Charles' brain for good. The seizure the other day hadn't been a one off, after all. Still learning to cope with life in a wheelchair, Charles now has this to think about to.

And all because he'd modified Cerebro. He sure as hell feels to blame, regardless of Erik's words.

Face sad, he nods his acceptance of Erik's apology and beats a hasty retreat.