The pained sound only makes her shift to press a quick peck against his snout, reluctant to let go of her son.

"Only hurt if forced to." She answers gently back, "You can defend yourself, Asriel. You can't let revenge blind you to what you're doing. Even if it feels good in the moment, there will always be regrets." She's proud of him for wanting to change, for intending to try even if it wasn't easy. "Don't hurt human, monster or whatever else lives out here without a good reason."