The opposite of love isn't hate, but nonchalance.
爱的反面不是恨，而是漠然。

Unrequited love is a kind of self-destruction, is also a kind of sacrifice.
暗恋是一种自毁，也是一种牺牲。

Give me a promise, I won't go anywhere, standing right here waiting for you.
给我一个承诺，我哪里都不会去，就站在这里等着你。

You feel a little sacrifice yourself, but to the people around you great comfort.
你稍稍牺牲一下自己的感觉，却带给你身边的人巨大的安慰。

After all, feelings must pay, not only want to get
毕竟，感情必须付出，而不是只想获得

From beginning to end, are my a person in homing since act.
从头到尾，都是我一个人在自导自演。

Really, I can for you abandon everything
真的，我可以为你抛弃一切

Beautiful story is performing(?) desolately     ( 这句不知道该怎样翻)
唯美的故事正在凄美的上演