The Italian's Rightful Bride (Harlequin Romance)

Joanna had been head over heels in love with her convenient fiancé, Gustavo Ferrara, when he fell in love with–and married–someone else!
Now, twelve years on, Gustavo Ferrara, now single, is thrown into turmoil at seeing Joanna again. He's older, wiser, and he realizes Joanna is the person he should have married–but he has no idea how much he hurt her. Can he persuade her to give him another chance…or is she once bitten, twice shy…?