"I'm an idiot," he says, gently, despite the tremor in his own voice. "But I'm also terrified. Cordy... You didn't let him out. I hate that I-- that he made you think that, but he did get out. And it wasn't the first time. Those aliens can make me become Angelus whenever they want. I'm not in control. I can't stop it, I can't...protect you from me. I might be back, but how..."

See? Not good with words. He can't even finish the rest of that; he just goes quiet and holds her as she cries, clinging to her as if she'll fall through the floor if he lets go.