"So what do you want to do tonight?"
"Oh, I dunno...why don't you go get us a video?"
"Something domestic or foreign?"
"Not domestic, but no French! Maybe Mediterranean, you know, Greece, or Italy..."
"Greece might be hard...how about Tuscany?"
"Yeah...With a villa, and big family meals, colorful locals..."
"Oh, no coming-of-age, and no creepy older men and young women."
"How about an older woman and a younger man?"
"Named Marcello!" No, no, no..."
"Ok, that narrows it down a lot. How's this? Recently divorced (and bitter) writer goes on a Gay Tour, finds a run-down villa, moves in, her pregnant lesbian daughter comes to live with her, she has hints of romance, befriends a local young couple, has the marriage at her villa, her daughter gives birth, she starts a new extended family in the villa, writes the Great American Novel, everyone lives happily ever after?"
"Well, OK, make sure that the villa is remodeled, and the writer is a gourmet cook!"
"No problem. I'll check under the fantasy section."
I came back with Under The Tuscan Sun. It met most of the requirements - except it did have the main character fall for a younger man...named Marcello...He told her she had "beautiful eyes" and it worked! (Then he ditched her, of course.)
Like I said—a fantasy.