Welcome to angst folks. We have a nice dispensable wall over here with over 500 china to choose from. Smash shit to your hearts desire.
This is definitely heartcrushing, but therein lies the hope in the first place. The sheer fact Shou has been explicitly doping us up on angst only to poison us centered around the pain of broken romance means that he is not only making it clear that he is intentionally making the focal centerpoint of the story around the two in a ROMANTIC sense, it also means that most of the best storytelling techniques advancing from here involve something far more heartlifting and satisfying.
I don't think I need to explain the first part to clearly, I know most here can see and clearly understand that fact. The second is just iterating a commonly employed but superbly effective tactic to soak in the audience: wrench their hearts dry, soak 'em back up even better. The more effective and ingenious the storytelling, the better effect this has on audiences (usually accompanied by a deluge of tears).
...but I think it's worth pointing out that if I didn't walk away from my computer for a few hours, my comment would probably be spewing a litany of derogatives and curses and Shou since that would accurately reflect my mindset immediately after reading this >.<