Antonin's response to his wife's remark was to simply kiss her firmly on the mouth. Without care that they had an audience of their disgusted son and their uncomfortable host, he put all of his emotion into the kiss. Hermione was caught off-guard, but didn't have anything to complain about. Only the tactful clearing of Augustus" throat encouraged them to break it off. How the man managed to stay so composed when he was daily faced with watching the woman he believed himself to be in love with with her husband was a mystery. Antonin argued in the privacy of their bedroom that it was proof that his feelings for Hermione weren't as strong as they used to be. As much as she hoped he was right, she wasn't prepared to believe his theory quite yet.