Rule #1: Never fall in love on vacation in Italy.

Any romantic notions of being an artist and finding true love are in the trash.

After kissing Gianni on a bridge in Florence, he left me waiting.

And waiting.

My vacay is over, so I fly back to NYC, heartbroken.

I guess you could say I'm stuck in that gelato-sweet moment.

All I have are foolish teenage memories, a high-maintenance cat that I inherited, and a painting that Gianni gave me. Oh, well.

Then, the New York art gallery where I work gets a new owner.

An Italian, ex-soccer player, billionaire, also called Gianni.

Could it be the same Gianni who kissed me and made me feel as if I was the only girl he had ever kissed?

But too much time has passed. I look different. He doesn't recognize me until, in a Negroni-fueled moment of madness, I blurt out the truth.

He's shocked. I quit my job never to see Gianni again.

Then, a lucky break, a million-dollar painting, and a new pink hairdo bring us back together.

Discovering Gianni's secret could give us a second chance at love.

But my secret could mess it all up forever.

For fans of the U.K. TV show 'Fake or Fortune' - Mr Billionaire Boss Grump is a dual POV, heartwarming, funny, stand-alone romantic comedy with swoony kisses, priceless art, vintage Italian convertibles, and a HEA that is off the charts.