Cortejando Um Semideus Arrogante (Rebekah Lewis).

This book is about an arrogant count who falls in love with a beautiful young woman, but he has to compete for her love against an envious duke. It's a historical romance with a touch of the supernatural!

Bryce Stirling (the Count of Winterthorne) doesn't want to go to the interior of England to marry his cousin Ione to the son of a Viscount, but when he hides away in Summerfield's stoves, escaping from guests, he gets captivated by the same female whom he chose the same place to hide from his family - and from a persistent sadomasochist who wants her for himself. Miss Wendela Harlow has three older brothers who protect her. Once the seducer Lord Shellington is interested in her at the wedding, her brothers step in, and Wendelan searches for comfort in the stove to avoid them all. When they find the Count of Winterthorn, they want to get to know the mysterious man who is always talked about in high society - but almost never seen. They don't wait long to find out that both immortals are interested in the same woman, and Bryce somehow lets the Lord Shellington convince him to participate in an bet for the love of Miss Harlow. Whoever wins, takes the woman, but the loser will have to give up his immortality.

The Arrogant Semi-Divine, by RebekahLewis If this book is new to you, here's the description I made for it: An arrogant count falls in love with a beautiful young woman...but has to compete for the girl's love against an envious duke. A historical romance with a touch of the supernatural! Bryce Steved, the Earl of Winterthorne refuses flat out to go inside England to attend his cousin Ione's wedding with the son of a viscount. But, while sheltering himself from the Summerfield heat by the fireplace, he is captivated at once by the beautiful woman who also chose that place to hide herself from her family - and a persistent suitor desperate to win her over. Miss Wendelin "Windy" Harlow has three older and protective brothers. So when the charming Lord Shellington takes an interest in her at the wedding she seeks comfort by the fireplace to avoid all three of them. Once she finds the Earl, she wishes to get to know the mysterious man everyone talked about in high society - but almost never actually sees. It doesn't take long for the two immortal beings to find themselves competing for the same woman, and Bryce somehow allows Lord Shellington to persuade him into joining them in bets for the love of dear Miss Harlow. Whoever wins gets the woman, but the loser will give up immortality.