"It was a slow thing, something that built up from school. I always felt that you and Sirius would put each other first and I thought I could live with that until my family was threatened and if I had said something earlier-" He sighed. "James, you have done shitty things since you were eleven, but focusing on your son and wife wasn't one of those things. You did the right thing. I- I guess part of it was jealousy. I was so used to you putting Sirius, then it became Sirius, Lily and Harry. I convinced myself that you wouldn't care."
He sighed. "I don't know, Prongs. Slowly, one day at a time, one awkward discussion at a time, that's the only way to do it. It's not something that you have to decide now. That's not why I wrote. I wanted to truly talk and tell you all of this. Now take your time, talk to Lily, see what she said and in the meantime we life and we grow. It seems that none of us got that chance last time around. Maybe this time we can."