River by Anne Gregor

River Byrne currently runs an interior design company in Dublin, Ireland, with her two sisters. She grew up in Oklahoma, but drama in the family forced the Byrnes to relocate, and where one went, they all went. Fortunately, her older sister reunited with her boyfriend. Unfortunately, River is forced to endure nonstop interaction with his brother. Her obsession and the man who considered her his best friend.
Patrick O’Faolain is the youngest son of Hugh, an Oklahoma oil billionaire. Pat worked hard and played harder. Socialites and Scotch were two of his favorite things—until River Byrne. She was the one woman who could make the jet-setting playboy run scared. He had no plans of risking his heart. His heart had other ideas.
After following the O’Faolains to Ireland, Samuel Delton’s game of cat and mouse had entered its final round. As a star of the Dark Web’s King of Twisted Love stories channel, Sam’s time for revenge needed its final chapter if he were to keep his fans happy. It was time to end his enemies. Permanently.