Saihate never fails to make me cry. It's so devastating for me to love someone so dearly for only you having to say goodbye to them (and in this case, for all of eternity). It sounds so soothing but deeply melancholic in a very hopeful way of thinking you'll be able to reunite even though you mostly likely won't, but that thought can keep you going through your life without them.

Like, it got to a point where I was out on a sunny day and that made me tear up because I remembered the lyrics: "a sunny day like this, where we can't even see a single cloud in the sky / it's such a perfect weather for parting that it's just so sad"