The way you described in your short meta above how you see and understand Brian and Justin as a couple, is exactly how I see them too. Maybe that's why I feel so at home in your post 513 universes. Like this scene, that really got me: Brian blew out a long stream of smoke. "By all means, Justin, let's talk about the weather instead of what a shitty father I am."
"Oh, Christ," Justin said. "We're having one of those moments." He dropped his arm and went back inside. I like how Justin doesn't join the pity party Brian is throwing himself, because how often can you tell someone that he's talking BS.
I love this story in particular, because it has this feeling of reality to it. Not everything is glossy perfect. There are doubts and hard times, but the love underneath it all is always visible.