The Millionaire Meets His Match: Harlequin comics

Cass panics when her cat, Crudley, is mistaken for the cat of the wealthy Emily Crosswhite and is kidnapped during a stay at the vet. If it's known that the kidnappers got the wrong cat, Crudley could be killed! Before the criminal catches on, Cass goes to speak to Emily to ask her to buy them some time. While Emily is sympathetic to her troubles, Gabe, who works as security for the Crosswhite family, is suspicious. He thinks she's a fraud after Emily's money, and he begins investigating Cass!