Tu es belle
Is meant , “you are beautiful”
Tu es beau
Is meant, “you are handsome”
Tu es tellement beau
Is meant, “you are so handsome”
Mon amour
It meant, “My love”
Tu es mignonne / Tu es mignon
The translation is : You are cute.
Je suis tombé amoureux / Je suis tombé amoureuse
“Fell in love”