"Daryl becomes very frustrated with people giving up the fight for Sophia. And he doesn’t understand why so quick everyone is going to give up because everyone gave up on him, basically. His initial outburst [in the stable] is one that he was taught, which is to fight and she [Carol] took it, which is such a strong moment. He’s not a talker, he’s not a figure-this-out kind of guy. He’s just like, you don’t understand? Fight. When it hits him what he’s doing [by insulting Carol], and he doesn’t want to be this guy - it just brings their bond closer."
Norman Reedus, Inside The Walking Dead: Episode 207, “Pretty Much Dead Already” (28/Nov/2011)
Norman gets it.