Nothing. Well, no, that's not strictly true. He's told me about what happened in this life. That he and his brother didn't get on, he left home as soon as he could, never spoke to him since, took mum's name when he got married...*runs her hand through her hair.* You know, I never even thought about that before. I just assumed he was being modern.
So yeah. He'll tell me about this life but I'm not even allowed to ask about Before. That's forbidden.