Unforgettable by Rebecca H. Jamison

As teenagers, Celia and Manny planned their future together in the branches of a mango tree. Soon afterward, Manny leaves Fogo Island for college, expecting to marry Celia and take her to America once he graduates. However, during Manny’s schooling, the volcano near Celia’s village erupts, burying her home.

They lose contact with each other, and Celia comes to believe that Manny has fallen in love with someone else. When their lives intersect again, too much has changed for their plans to ever become a reality, yet the promises they made and the desires of their hearts persist, becoming unforgettable.