It means, "You're still my [female] friend."
you are my best friend and little sister.
mi mejor amiga
Eres mi nuevo amigo. Or...mi nueva amiga for a female.
"Es mi amiga" means "She is my friend" in Spanish.
Amiga, eres hermosa (from a woman to a woman; or from a man to a woman) "Eres bella, mi amigo." [Only if your man friend is a transsexual; but it's still wrong: bella (fem.) -amigo (masc.)]
You are my moon, You are my sun but you are the queen of my heart.
"Tu eres mi mundo" in English means "You are my world."
"I miss you very much, you are my best friend and I love you alot"
As written, "you my friend(male) you in my the life girl." Maybe something like "You are my friend (female), and you are in my life, girl." That would be "Tú eres mi amiga, y eres en mi vida, chica."
Tu eres mi amor means: You are my love
The sentence seems incomplete, it means: '(My lady)friend sometime ....you....important you are for me' (Missing: '....I'll tell/convince....how...' (?))
It means, "You're my heart, you're my love, you're my life."