Okay but the fix it writers when it’s been three, no, nearly four year after Bilbo left the lonely mountain. He saw them die. Thorin and his nephews. He knew he couldn’t stay to watch them mourn. He felt to responsible for having been knocked out earlier and now being the sole reason the line of Durin has fallen. But then those four years later, Bilbo is doing his merry finest to act like nothing had happened to crush his soul. To act like a regular hobbit around the others. He gardens and bakes and hell, he’s has a little fauntling toddling about the hobbit hole. He had a family. A boy. And then that early morning knock at breakfast. A very much alive and desperate looking King Under the Moutian and his trusted company. All alive and accounted for at his round home door. There was a lot of misunderstanding later and explaining that was gonna need done from both sides, especially with a certain tiny dwobbit playing on the ground.