Hmm, yes, some sweet Vanilla loving before graduation...And most likely after graduation, too.
Also how nice that their other friends who were also a couple decided to be wingmen by having sex behind the gym in full view, giving them a chance to progress their relationship. And also I like how his friend has total faith in his friend's Hentai Protagonist power of going for it when the time is right.
Great ending though. Yes my friend, make sure you properly confess, and then after graduation, you can make it a proposal.