ehhh is it really over?
:/
wish it were finished off where they become official
The final extra pretty much implies they became a couple.
I also got the impression that everyone knew during their schooling that they were dating despite both girls trying to keep it a secret. Not to mention their double-date.
Yeah, I also got that impression since the other girls said something like "they´re officially going out" and stuff. Ah, I really love this manga ♥