Don't worry. This isn't the end. There are more chapters after this back in high school. This is probably the only chapter about the future. Truthfully, this was rather heartbreaking. I really thought this doujin would go the Sensei route, but this is probably rather a Sensei appreciation comic.
NOOOO! I thought it was the usual "taking care of a friend's/relative's baby." Why? Why did you do this, author? Why?
Hachiman x Sensei is the only heterosexual ship possible in Oregairu. We had 3 chapters hinting towards a possible relationship between them and boom, she gets married to a random guy and has a kid... I feel betrayed