Some examples what are French are sayings about love (with English translation) :
Je t’aime = I love you
L'amour est plus fort que tout = Love is stronger than anything
Tu me manques = I miss you
L'amour est aveugle = Love is blind
Sans toi, je ne suis rien = Without you, I am nothing
Tu es l’amour de ma vie = You are the love of my life
Je veux passer ma vie avec toi = I want to spend my life with you