The knight grunts. The truth of the matter, of course, is that when a Kevin runs off on his own, it's because he doesn't want to be around people. But it won't do any good at all to say this, because Lacie lives with Asshole, and so Lacie knows that perfectly well and already doesn't give a crap. He's strong enough to pull away from her, but if she's feeling stubborn, he's not sure he could pull away from her Chain.

Most importantly, he just doesn't have the heart right now to fight her over it.

Obviously the best solution here is to just go home with her, and slip out while Asshole distracts her doing Asshole things. So he follows her at last, though he makes it clear that he's going to go at his own pace, and he tries to tug back his arm.