"We probably guessed it, or assumed, but Sirius, talking about it helps you. It's not about the details, that's-" That was sick beyond words. "It's not about you saying every little thing that happened but it's about you saying that it happened in the first place."
Peter was trying to pick his words carefully, because he couldn't remember Sirius ever opening up and he didn't want to get it wrong, but he was sorting out his own problems and sometimes things came out wrong. "I think that's why I was so angry with James and you. How dare you question me for what I did? I have my reasons. What I mean is- you learn to push things down, laugh off when people fuck up, but then when you fuck up, you want people to laugh it off. We do the same thing and it's- fucked up. I owe James a real apology, not one with qualifiers, and that's- that's on me."
He ran his fingers through his hair. "I guess what I'm saying is that you need to stop pretending that you aren't upset with what happened. Maybe- talk to your brother. It sounds like you were trying to protect him in your own fucked up way." Because of course Sirius would think that protection meant pissing his mother's off. "And talk about what makes you angry. Again I'm not talking about the details. You don't have to share those if you don't want to."