Guinevere felt that if any one from her past gave her apologizes or anything of the sort that she would be bound to repay them somehow. It was a defense mechanism. As much as she did like hearing him say that he felt the need to apologize she wasn't about to state that aloud. She also didn't know if she could stand to go through things of the past a second time. She nodded once, "I understand, Arthur. I appreciate your honesty."