It's just -> short romance plot. I can't stand drawn out ones (His and Her Never-ending Circumstances) or short ones that typically highlight short segments of the romance then move to a time skip / tragedy (5 Centimeters Per Second). A series like Monkey High, which is not the greatest, does it right. 8 volumes, no skips, highlights multiple segments, concludes nicely. Punpun also has amazing romance pacing where it never feels dwelled on nor cut short. You know, Yankee-kun also had fantastic pacing until it completely fucked itself. What a tank.
I simply cannot imaging a short series with a romantic subplot not just pissing me off even if it is great. I assume you might tell me it is more SoL / drama about daily lives. But I'll still be mad. Mad as hell.
/rant against short reads