He's shaking a little. By some feat of strength (or weakness?), he's managing not to cry here, though he's close. He's just so dazed and pained and - Héctor's missing his arm now, and they're in a dumpster fighting off magic that actively hurts them because his uncle is a monster and prowling around outside. And that's before he gets to anything the thing even said here. Deep breaths. Deep, deep breaths.

"I know," he manages after a moment. He's gulping down the words, somehow forcing them around the lump in his throat. "I know he loved me. But - I hurt him at the end, Héctor. I saw the lycan kill him. If I'd come back even five minutes earlier ... "

Then Ben wouldn't be out looking for him, or Peter could have saved him directly, or - or, or, there's so many possibilities that don't end in his uncle's murder. Any of them would have worked. "He's right," he finishes miserably, putting his head down to his knees. "I don't belong here. Maybe I should have let him do whatever he came here to do." He'd deserve it at this point, surely.