Even the doomed eternally, I love you will never change until death.

即使万劫不复，我亦爱你至死不渝。

youdao

I love you, and I will never change my love in you!

我爱你，我永远都不会改变我对你的爱！

youdao

My love will never cease towards you, but should I have a change of heart, It is because my heart has ceased to beat.

对你的爱永远不止息，我心若有丝毫变易，必是不再跳动已死寂。

youdao