Since his human isn't feeling too great lately, neither is Seele.
Seele is a sensitive deer, like his human he dislikes changes and would love his life to keep on going the same way, with his friends.
But even if he isn't that long in the forest, he has still lost some who never came back. It hurts him quite a lot.
It's summer, he'll have to get used that a lot of people will be gone at this time of the year, and that we will go one day too.
But untill then, Seele will be mourning in the forest, trying to stay alone and sleep a bit. Something he only does when he doesn't feel good.
(I know a lot of things are off and that most of the detail got killed, but the anatomy was done on purpose I guess >.>'..)
Yaay for me being unable to make details...