Jon had often been accused of needless melancholy on the island but his life in Westeros had left very little time for mirth or good cheer and was often mired in death and mourning and hours and hours of duty. The island had given him cause to smile and had given him time with his brothers and sister again but that, too, had been taken away from him. No matter how much he searched the worlds beyond the doors, he could not find one that led back to the island and there was no way to see Robb again.
He missed him. It was like mourning his death all over again and it was something that kept him up late this night, pouring over a bit of paper as he tried to work out a complicated family tree with all their island relations added in to those he knew from Westeros. There would be Robb's children to account for, along with Delirium and her children too. There was Bran and their added family in the form of Hiccup and Merida, those who hailed from other worlds that seemed similar to Westeros even if they were not quite the same.
And, of course, there was one important person he needed to add in the middle of his family tree, one who had come to mean everything to him.
Jon Snow - Leah Clearwater
He had taken vows to never take a wife when on the Night's Watch but now, three years removed from Lord Commander and Westeros entirely, those vows seemed distant and hazy. He had been with Leah for long enough to know that he loved her and wanted to be with her for as long as the gods would allow. He had contemplated asking for her hand on the island but had never done it, too wary of breaking his vows in front of those from Westeros who knew what swearing allegiance to the Night's Watch truly meant but now in the Nexus, there was nobody who knew the significance of those vows. Those scarce few from the island wouldn't care if he broke his vows in the letter of the law; he had already been breaking the spirit of them for years.
"It seems I need to make an offer for her," he said to himself, heedless of anyone else listening. There was the matter of figuring out a way to ask, as Leah wasn't swayed by traditional displays of courtly chivalry, but Jon was reasonably sure she would answer him yes.
Or, so he hoped.