Hi Aneta and/or Efy! I first edited the flag from the source-text, as requester submitted this text under the Spanish flag.
Is use of the pronoun "tu" correct in this case?
wouldn't it be translatable by "You, you are beautiful! I'll always love you" rather than simply "You are beautiful, I'll always love you" (that would be "simply "Pulchra es, semper te amabo" )?