If Carver was not taken into the Deep Roads Expedition:
Carver seldom contacts his family since joining the templars. He gives excuses of duty and training, but his words are those of a man still uncertain of his choice. He has little in common with others of the order, having come from a family so steeped in magic. And while he is certain that regulating the Circle is as much about protecting mages as it is controlling them, he has seen disturbing abuses of power. The purpose he has found in service is strained by the blind hate some of his superiors possess. There is good work to be done, but the path is more winding than he had imagined.
If Carver was taken into the Deep Roads Expedition with Anders present:
Carver rarely contacts his family since joining the Grey Wardens. His duties have taken him places even a soldier of Ferelden would never have seen. Despite his freedom and authority, Carver sees becoming a Warden as another decision that was out of his control - although the choice to be in harm's way was certainly his. If pressed, he would admit that his grudge is as much about familiarity as it is about family. Even between Blights, the Grey Warden oath is a heavy burden to bear - accepting it can be a long process.