My thought was more that the lack of physical interactions with AA during the epilogue matches with how he keeps the player character at a distance during his kisses
My thoughts as well hence why I don’t understand why we need any kisses or hugs in the epilogue with him. Every epilogue I’ve had with AA felt good and true to character. During the kisses in the game, he is always in control and doesn’t let his partner go “too far” when they reach out for another kiss again. Personal HC is that he just likes this appearance in public. Of course you can (I do) HC that he is different behind closed doors. But since the epilogue is again in a public setting, I imagine appearances would be very important to him there.