Redeeming 6 by Chloe Walsh

He's underwater, but she'll pull him out, whatever it takes. With his world unraveling around him and pressures rising at home, Joey Lynch's life has never been in more turmoil. Desperate to prove himself worthy of the only person he's ever put his trust in, Joey fights hard to save himself from his addiction, but the odds are stacked against him. Day by day, the water is rising. Giving into his demons would destroy everything he's worked for—but soon, even love doesn't seem like enough to reach the surface. Unwilling to give up on her best friend, the boy she's fallen for, Aoife Molloy fights back against Joey's self-destruction with everything she has. But she's drowning, too, in this world she doesn't understand, with only her fiery heart to guide her. As circumstances change and unexpected hurdles rise between them, hearts will break and mend and break again. All the while, Aoife refuses to turn her back on Joey—because he's always had hers, too. In the end, it will be up to both of them if their hearts are worth healing and their love is worth saving.