Maybe the thought of realizing that she lost all her family and ruined the relationship with them broke the cold wall of iciness that she used to protect herself from getting hurt. Her thoughts and preoccupations were hanging out like sheets but the wire was so thin and unstable.
She still had John and having him by her side made her happy, but she didn't want to depend on him or to have only him in her life.
"I see that face again..." John said recognizing the thoughtful expression she had. He disliked when women had that blank thoughtful gaze because it always led them to make hasty choices, but if it was other women he didn't care. He didn't want Roselyn to let her overthinking get the best over her and lead her to do things she would eventually regret.