Mo Ye, as though he wanted to figure out what she indirectly meant, looked at her deeply. If she was jealous, that would prove that he was in her heart. If she minded the past, then things were tackier.
He knew deeply that the damage had been done and all that he said now would be for naught. All he could do was hope she would gradually forget it. He would deeply remember what happened even though she forgot so that there would be a happy situation and she wouldn't have to face him with too deep a shadow of what happened and hurt herself too deeply. Clearly remembering it would serve as a reminder to his future self that he had once hurt the woman whom he deeply loved and how she had once hated him before so that there would not be a repeat of what happened and her hating on him.
Many things could stop him from doing things that were mutually hurting.