Davyn is damaged, broken physically and mentally after being raised in captivity. He joined the Blackjacks to seek revenge against those responsible, but isn't truly a part of them. He maintains distance while hiding his disfigured wing and his true heritage. His reputation as one of the deadliest is well-deserved.
When he once more finds himself back in chains, fighting for his life, he doesn't regret what led him there and accepts his fate. As long as she's safe, that's all that matters.
In the two months since he disappeared, the Blackjacks haven't given up hope, neither has Thea. Davyn sacrificed himself to save her and the guilt is consuming her. She thought she knew better and he paid the price for her arrogance.
When they finally bring him home, they can repair his body, but she might be the only one who can reach through the darkness of his mind and save him. Otherwise, he'll be lost to her forever.