I think that Coral(Carl) is going to act similar to the Governor.He is going to see how someone that he somewhat trusted hurt him badly.He will then realize how the people around him couldn't save him in time.He will then take the groups destiny into his own hands(much like the Governor did with his group/city) and destroy anyone in the way of the destiny or survival of his group.
1. Carl NEVER trusted Ron. 2. Carl WILL be okay, though he slips into a coma (like Rick in Season 1). In the comic book, Carl is more harden by the recent events and will probably go through some changes.