Ambrose's heart broke for Buffy. She was having such a hard time with everything and he didn't know what to do. He could take the memories away, but that would only hurt her more. All he could do was offer comfort, but it was not his comfort that she would want.
"Maybe you should do lay down, Buffy. I don't think you are not completely recovered from last night." He stood up, putting a hand on her shoulder. "You need some sleep, real sleep."