it could have ended well, but thanks to author dragging the plot
That's the default fate of most magazine serialized yonkomas, which in my perspective, are like hanging out with friends (because most of them focus on characters, their personalities, interactions, and complexities of their social network). You do stuff, stuff's happening, everyone's having fun, and then you suddenly realize it's time to go home, because people start losing interest, though they don't show it that much. From there, you start looking for excuses to leave and jump on the first opportunity to do so, no matter how trivial or abrupt it seems.
Either that, or you get kicked out of the bar.
Anyway, thanks for the translating team for seeing this series to it's conclusion.