What is the meaning of 'Je t'aime Ne changez pas pour n'importe qui Et vous etes si beau'?

The sentence 'Je t'aime' means I love you. The sentence 'Ne changez pas pour n'importe qui' means Don't change for just anyone. And the sentence 'Et vous etes si beau'* means And you're so handsome [good-looking, etc.]. *The adjective 'beau' is used to describe a male. If the comment is to a female, then the word is 'belle'.