"Yeah. I know what it's like," he agreed, not surprised that Sirius had been echoing his thoughts. It wasn't very often that they didn't know what the other was thinking, at least in broad terms. "Why didn't Dumbledore...it's going to take me a long time to understand it all, Padfoot." And did it even matter? Apparently, he was dead, Lily was dead, Sirius had been in Azkaban, and Harry had grown up without them.
He was about to ask about Remus, find out if Sirius knew if he was okay, when suddenly there was mention of Harry's son. "Harry...Harry has a son? How...he's only one..." He trailed off, confused and devastated and unable to ignore the sick feeling that this was all his fault twisting his insides. "James Sirius Potter...he named him after us." He blinked twice, rapidly, then cleared his throat.
"Can you take me to him? I...don't know if I can handle any more explanations tonight, but I want to meet him at least." At least, he thought he did. He looked at Padfoot, then followed as the other man led him in the direction of Harry's son.