"I had a wife," and it pained him to say it because she was gone, "but she's gone now." So he supposed the ring he still wore on his finger was nothing more that a symbol of a relationship that had died once again. Always searching for the woman that he couldn't have, in the end maybe he was meant to still be that of a celibate monk (if that were an option).
Her second question took a little time to answer. "If she isn't looking for any of us." He had not seen Guinevere in so long, the woman even on her death bed died before he could see her, and willed herself to.