The temperature is starting to steadily rise, especially around his hand where the air is actually starting to waver and shift where he's gripping Axel's arm. He's literally shaking from frustration and anger, not wanting to let go for anything. They're onto something, something important, and here this coward is, unable to face anything once again. It's a struggle to rein himself in so that the entire house doesn't go up in flames.

Finally, he lets go of Axel, shoving at him roughly. "Fine. Run away like you always do."