Iirc the commonly accepted reason as to why Alphys took so
long to finish Mettaton’s body was that because if she did, he’d leave, and
some details have me thinking that while this was true, and Mettaton definitely
picked up on it, it wasn’t the whole story.
First some odd details. This isn’t required for the upcoming theory to work,
but it lays a good groundwork for it. Warning: long and image heavy, also
blatant metaphysicsery.
honestly just really like undertale 