>>723516475
It's a role playing game, you're the psychotic one.
To make sure I stay in character, after the vault opens and he sees his dead wife, I wait 24 hours in game to represent his devastation. Finally he remembers Shaun and goes up to the surface, but when he sees his destroyed house and codsworth, I wait 2 in game days because he's just broken and feeling sorry for himself.
Finally, driven by his hunger and because of the shock, he kind of goes into automatic fight or flight look for anyone that can get him food.