Her Naughty Detective by Amy J. White

Vance’s life is in pieces. His job is all about chasing cheaters and he didn’t even know his now ex-girlfriend was cheating on him. Broke and alone his sister and his favorite nephew ask the private detective to find his missing dog, Vance figures that’s pretty much all he’s good for until he lays eyes on the veterinarian in training, Audrey.
Audrey doesn’t really have time for men. She’s busy. Beyond busy, but when a rash of dog kidnappings comes to her attention she decides teaming up with the ‘scruffy and pushy’ Vance is the only way to solve the crime…