I think it’s creepy.
Actually, I feel it’s representative of the kind of relationship that Makoto and Yuuichi have. There’s a distance because of their perceived differences, and Makoto certainly respects that distance. It’s a little complicated to answer this question, actually. It’s been established that the cat has taken a preference to sleeping with Yuuichi before, so Makoto’s probably telling the truth when she says that Piro wants to sleep with him. However, she likes sleeping with Piro, so this means sleeping beside Yuuichi as well, a compromise she is willing to make. When Piro leaves, she’s grown too attached to the idea of sleeping on Yuuichi’s bed that she can’t see herself sleeping anywhere else. Animals are creatures of habit, anyway.
Even Jesus cries for the people he loves.
I’d much rather leave this to your own conclusion, but I personally believe that Yuuichi changed because of his experience as Makoto’s father figure, in both seeking out for what he considered her personal well-being, and in seeing that her decision to be human to search for him was not in vain. After her passing, he found himself changed subtly from appeasing her to the very end, learning to tolerate what he considered childish and sappy for the sake of another. It’s a subtle, natural progression that I think anyone raising a child might undergo, and considering the usual themes of Maeda’s stories, I think that was the point.
Uh…she loved spending time with him, and seven years is a long time to wait for his next visit. I’d turn into a form that would kill me slowly too, if it meant I would see a good friend again.
What’s to say that the route hasn’t already told us? Yuuichi said it seemed like a surrogate Nayuki, and that its melting was a sign that it had given its blessing to his and Makoto’s ‘mawidge’. It didn’t seem to have any particular features on it that would work as symbolism, although I like to think it would look like this: