What does Y tu ere un negrito lindo mean?

Some phrases do not translate well from language to another. This is one of them. The Words can be easily translated to "My pretty black one." But the true meaning of the love in this phrase is lost completely.

The Word negro means black, but in this case it is a term of endearment speaking of a person's dark, tanned skin. But it is also a term like the English saying "Sweet heart" which does not translate to spanish either.