yes if the friend is a girl!
Be my girlfriend translated into French is: être ma petite amie/ma copine. An example sentence using this is: Serez-vous ma copine? This means will you be my girlfriend?
ma copine
"C'est ma petite copine."
Tu es ma copine
j'aime ma petite amie, j'aime ma copine
Ma petite amie. or in slang in some regions - ma Blonde. Mon amie, or Ma copine
Ma copine a rompu avec moi.
You mean "my friend", right? If you do, you say mon copain or ma copine.
My friend (female)
To say "Happy birthday, my friend" to a female in French, you would say, "Joyeux anniversaire, ma amie." If you want to be more informal, you can simply say, "Joyeux anniversaire, ma copine!"
"Quoi de neuf ma copine?" is a French expression that translates to "What's new, my friend?" or "What's up, my friend?" It is a casual way of asking someone what is happening in their life or if there are any new developments or updates to share.
C'est une question personnelle sur le nom de ma copine, que je ne souhaite pas divulguer.