A Pineapple in a Pine Tree by Eve Pendle

Five years after breaking Amelia Chilson’s heart, he’s back. Robert Danbury wants the mistletoe kiss Amelia denied him years ago, but nothing more. Loving a woman again is an unthinkable risk. They just have to make it through Christmas without kissing or killing each other.
Over presents and under mistletoe the past is revealed. Their mistakes are sweet, ugly, delicate, and unassailable. Botanist Robert might be able to grow pineapples almost as perfect as the ones Amelia can picture in her embroidery, but they can’t change the past. Especially when Robert’s daughter is a constant reminder.
Then they’re caught innocently in bed together and Robert has an instant to choose: Amelia’s reputation, their lost love, or his conscience.