@Nakanowatari if you go back and read the previous chapter, you will see they had already figured out what they feel for each other, what they are and what they want, even before the bed scene, I think. Then Rin nearly went and ask him to marry her.
Gonna be so pissed if it turns out this was all some dream for one of them. Like Rin fell asleep in 64 and is dreaming all this, then wakes up. I hate that shit.