I may forget you if you leave me so long. But I won't if loving you have became a habit.

起初我也曾怀疑我是否会忘记你,但现在,爱你已成习惯,伴我生,随我死。

To leave you is to die for me.

若要离开你,于我与死无异。

As you have stolen my heart, why not keep going on?
既已窃吾心,何不窃吾身?

Through that I have sold my soul to you, then what you will done to me isn't important at all.

我既已将灵魂售之与君,如何处置便都悉听君便即可。