I spoke to him. It wasn't great, but it certainly could have been worse. It felt so difficult, more like a chore than having a conversation with your best friend.
And it's downright bizarre that Severus secretly orchestrated it. I knew Sirius and I would eventually speak again, but if anything, I would have expected Severus to be less than pleased with that, rather than attempting to facilitate it. Gods help us all if Sirius finds out Severus is meddling. I just know it will push all his buttons.