It Had to Be You (Lucky Harbor #7) by Jill Shalvis

Ali Winters is not having a good day. Her boyfriend left her, everyone in town thinks she's a thief, and now she's about to be kicked out of her home. Her only shot at keeping a roof over her head and clearing her name is to beg for help from a police detective who's as sexy as he is stern.... After a high-profile case goes wrong, Luke Hanover returns to his hometown for some peace and quiet. Instead he finds a bombshell brunette in a heap of trouble. As he helps Ali put her world back together, the pieces of Luke's own life finally seem to fall into place. Is this the start of a sizzling fling? Or are Luke and Ali on the brink of something big in a little town called Lucky Harbor?