Перевод - Испанский-Английский - Esta noche mi alma seguirá triste por tus...

THis nigth my soul will follow sad by your problems and will stay like always your body together mine... I want you little princess, I love you and I wish you like nothink in this world.

Hi Una:
"mi alma seguirá triste por tus problemas":
here, "mi alma" means exactly "my soul" "my soul will go on..."
And I'm not sure that "te quiero" and "I want you" mean the same. "Te quiero" in Spanish is just another way to say "te amo" with no other meaning.

My mistake. Although "mi alma" may refer to the person addressed, "seguirá" is *third* person. So, yes, "my soul will go on".

However, translating both "te quiero" and "te amo" as "I love you" in the same sentence strikes me as graceless.

"being sad for" doesn't feel like English to me. How about "being sad about"? I can't think of anything more elegant.

I agree with both of you about "te quiero", but since the same person says "te deseo", I think it's OK to translate "te quiero" as "I want you" in this case.

What about "Tonight my soul will go on in sorrow..."?

I like it - thank you, little prince!