lily | james
I don't know. Sev never really talked about it, even when we were kids, and there's very little about it in the books either. He'd just say his Dad didn't like much of anything. And he seemed to get along all right with his Mom. Mrs Snape was always just sort of quiet and pinched looking. Like she was resigned to something... I don't know - I really don't.
Having Harry - I mean, I understand that sometimes children can be frustrating, obviously! But I cannot imagine not treating them with love and respect either.