The fact that Finch doesn’t remember how long he’s been outside of Violet’s house suggests that his mental state is worsening. When Violet insists that Finch brought her spring, it suggests that Violet is truly healing from Eleanor (this is further evidenced by her happiness and her work on
Germ). But Finch, on the other hand, seems to be struggling to make “spring” arrive for himself. His mental illness makes it hard to believe that he’ll experience good things again.