this chapter annoyed me for some reason, the drama got cancelled and i'm like 'what was the point'? it's not like the whole thing made them realize something new, right?
I have the exact same issue, and I can put it to precise words.
It looked like the "one last thing" was going to be a confession of love. A change in their dynamic. Some kind of moving forward, regardless of if it were accepted or rejected.
Now, instead of moving out, she's staying, and we get the status quo. The author gets to spin her wheels on this story and just keep it in a state of nothing happening for however long she wants.
As you said, it makes the issue seem meaningless. Hopefully the author doesn't drag this out, but we'll see.