It seems to perhaps be a deliberate choice that it addresses absolutely none of the problems of their relationship, that which the bulk of the story spends time dwelling on.
Which doesn't stop it from being sort of broadly disappointing. Like, really—"then we kissed and made up"? That's what we're stopping with?
(Well, I know there's styles of writing that follow a pattern sort of like this in an attempt to make some point about the whimsy of life and/or the primacy of personal subjective experience, or some such, but that doesn't mean I have to appreciate it XD)