Merci chérie
"Sweetheart" is most often rendered as "Chérie" (fem.) and "chéri" (masc.) in French.
In Cajun French, you can say "cher(e)" or "mon cher" to mean sweetheart.
Mon chéri.
Thank you is "merci" in French.
In Quebec French, you can say "merci" to express "thank you."
ma petit chou
Thank you Ma'am is 'merci madame' in French.
Thank you is 'Merci' in French
Là où êtes vous amoureux
ce qu' une petit amie
Thank you in French is Merci. How are you in French is Ça va? or Comment ça va?. Thank you and how are you in French is Merci et ça va?.
The most common and simple way to say "thank you" in French is: Merci.