but would it ever make Justin feel he is being unfair to Brian for putting his career first, or whatever caused him to leave?
Because Brian's an idiot who thinks he's doing the right thing by Justin in letting him go pursue his dreams.
How do you separate Justin from his career? Especially when his art is such an intrinsic part of him? How does that translate into a love decision? How could Brian loving Justin ever think of it as something apart from Justin?
Of course, you have to weigh your options and choices. But this is more about Justin having to negotiate his needs, finding a way to fulfill his need for Brian and his need for his art career. For them as a couple it is about working it out what feels right for them, again and again. And that is what they do. Together.