Talk:Sans/@comment-27866698-20151124191318/@comment-27281855-20151125001409

I really can se this working out. My headcannon is that it wasn't his fault really, but he put the responsibility upon himself to go back and try and prevent the "incedent" of his friends (Gaster in particular) being deleted from time. With his "save" being too far down the line  to prevent their "deaths," he gives up trying to prevent it after numerous tries. And well....

You pretty much know the rest of the story.