My Traitor Bodyguard

Serena Quinn's father raised orphan brothers as bodyguards. One was devoted to Jade, leaving Aiden Garrett, who suffered from autism, by Serena's side. Serena took him in, seeking medical treatment. When their boat capsized, Aiden ripped Serena's life vest and gave it to Jade. Serena realized Aiden's autism was a pretense to stay away from her. In despair, Serena Quinn drowned. She returned to the day she was to choose her bodyguard.