This is giving me similar vibes to Ushiro no Seki (The gal sitting behind me), or Horimiya, where there's just...a reasonably paced development of feelings.
Unfortunately, that USUALLY either leads into absurd plot twists to keep the status quo (which tends to delegitimize the characters), OR a very quick end to a series when it runs its course.
I like the realism in the main characters - inexperienced in love and thus awkward, but not so extreme as to be a caricature of a real person. I hope this manga takes these feelings, hits a relationship in a reasonable time frame, and
goes further past that like the aforementioned Ushiro no Seki