Abyss: A Siren Book By Tricia Rayburn

A year after the events that killed her sister and turned her into a siren, Vanessa is desperately trying to put her family back together and reclaim a 'normal' life. But no matter how many times she swims, or how much salt water she drinks, she can feel herself getting weaker and weaker. Meanwhile she's desperately trying to come to terms with her break-up with Simon. Her first love, who she drove away with her siren's wandering eye.