The Arrival of You by B. Cranford

How long does it take to fall in love?
Bianca Evers learned the hard way–after thirteen years with her ex-husband–that not even half a lifetime of love is enough to save her from heartbreak. So the idea of falling for someone in less than fifteen hours? Impossible.
Lucas Hawke is under no illusion that the beautiful American he fell for on their flight to Australia feels the same. She might want him–but just like the women in his past, she’s only thinking of right now.
But sometimes fate intervenes.
And sometimes someone arrives in your life who is meant to stay.
Forever.