Strongberry gets it right every time. I do not need Strongberry to make longer series because they squeeze everything out of their directors, screenwriters and actors into their series. For something that is only 20 minutes if you take out the opening and closing credits in this series. They got every nano second done right.

Episode 1 gave you everything you need to know the foundation of a not so one sided crush.

Episode 2 gave you the proof of the not so one sided crush

Episode 3 gave the misunderstanding which led to the breakup and open ending

Here is how I interpreted the ending. The MC turned down the ML which lead to ML leaving the MC’s life. The MC then rewrites the ending when he sees the note. The caller from episode 1 is the ML. This is why the MC is smiling when the door opens. The MC meets the ML after he reads the fallen note in diary. Now he has another chance at love with ML so that’s the happy ending.

Another alternative is you omit the MC crying scene and think he confessed to the ML and they had their happy ending.