Please don't list this on a work's page as a trope. Examples can go on the work's YMMV tab.
Tear Jerker: Zetsuen no Tempest
Yoshino's complete breakdown in episode 17 towards Hakaze. After seeing him be so stoic and collected for the entire series, seeing him collapse sobbing into her arms and admit that Aika's death ripped the very heart out of him so badly that he doubts he can ever be happy again was heartrending.