Ryan Gosling sure knows how to make a girl feel special!
"Ryan flew out to be with Eva as soon as she wrapped Holly Motors," one source says. "The film was a fairly small production and Eva was good about being focused and without many distractions on set."
A second insider adds that Mendes, 37, "was totally shocked" when Gosling showed up unannounced. See more pictures of the Parisian pair on Just Jared.
"They were talking all the time so she had no hints that he was coming," the second insider tells Us. "She was really homesick and missed him, even though she practically just left to shoot!"
The following day, the paramours snuck in a few kisses while strolling arm-in-arm through Pere Lachaise cemetery. The Beyond the Pines costars first began dating in September.
Gosling's exes include Rachel McAdams, Sandra Bullock and Kirsten Dunst. Mendes quietly ended her long-term relationship with producer George Gargurevich over the summer.
Tell Us: Do Ryan and Eva make a good couple?