"Not a lot of people were. Back home." There's no way to prevent it from rising out from their throat once they've thought it. "Not a lot of people were ever sorry. Or...not a lot of people said it. Just you. You and, and Alphys."

Is that why they've had such difficulty falling away from the pair of them? Is that why they couldn't quite succeed in levering their sins against their backs? Because it's hard to pile the weight of someone's transgressions on their shoulders when they've lived with those crimes for longer than they have with you.