Under Pressure by Ellie Thornton

All Bluebell St. James wants from her move to Diamond Cove is to settle down, find some security, and feel safe, but when her long-lost love walks into her bohemian boutique with four adorable little old ladies, all those dreams go up in flames in a whirlwind of emotions long buried. Sean broke her heart nine years ago, and she’s not about to let him do it again.
But when she learns he’s suffering from a recent loss, her resolve weakens. She can protect her heart and be there for him. Right?

Sean Clayton’s life is simple in its complexity, and he likes it that way. All he has to do is pretend he’s retired from the Navy while protecting a prince with a huge bounty on his head, find a sunken ship belonging to said prince’s country with treasure worth millions on it before his rivals do, and keep his grandpa and his grandpa’s crew out of mischief–which often proves more difficult than expected. Sean lives to serve, but when Bluebell, Blue, shows up in his life after nearly a decade, his priorities start to shift.
Seeing her again makes him want to forget all his responsibilities and for once in his life do something for himself.

But with someone always needing something from him, a hurricane about to hit, pirates on his tail, and unexpected horrors from Blue’s past all coming at him at once, putting himself first seems like an impossible hurdle.
Don Clayton has always had a soft spot for his grandson, Sean, one of the most selfless men he’s had the privilege to know. So when Bluebell shows up again, Don knows what he has to do–no matter what it takes.

With emotions running high, catastrophic weather, bad guys lurking, and two stubborn lovebirds, the Secret seven might not know what hit ’em!