It is my own opinion and it seems to be quite a minor opinion if we look at the global critic but I think it is very underrated. It is flat yes but flat doesn’t mean boring. The end might be disappointing but pretty much like a lot of romantic dramas. And the end to me doesn’t matter because that is not the message or the directing approach or storytelling the director wanted to tell (I think). There are beautiful quotes. tenderness, a lot of love sent to the viewers and you can identify yourself to a lot of situations… one sided-love, loving someone the society says you shouldn’t, loving someone for a long time and not saying it and so on, being in a relationship with no spark… and the letter (you know which one I am talking about) is like a big hug, for me and all the people who felt “why don’t you love me while I have so much to offer to you!” “what do they have which I don’t have ?” “how can I stop loving you, you who doesn’t deserve me”