My Dreadful Darling by H. D. Carlton, Trade Paperback

“My darling, it is you who is dreadful.”
Reverie Adams has only one goal in life: to keep her head above water with her father’s sinister legacy weighing on her shoulders. But she’s no stranger to drowning—it’s her very first memory, after all, and if her demons have it their way, it will also be her last.
Even with the blood of a serial killer running through her veins, Reverie attempts a normal life at Hollow Canyon University. But there’s a ghost from her past who refuses to set her free, haunting her every waking hour, and he will not rest until he has made her suffer.
Dreadful Sharpe has only one goal in life, but it’s not winning gold medals as an Olympic swimmer. The only thing Dread strives for is vengeance against the family who murdered his mother.