Found in Your Heart by Julie Brookman

Fake dating leads to real feelings.
David’s been dodging his mother’s matchmaking attempts for a while, but she keeps escalating her efforts. He comes up with a brilliant plan to throw her off his scent by having a fake girlfriend. And who better than his best friend’s younger sister, Charlotte?
Charlotte has returned to her hometown after a bad breakup in the city. Reporting for the local paper, she’s tired of covering the local quilting bee already. David gets her an in at the sheriff’s department for story scoops, in exchange for being his fake girlfriend. But can she keep up the pretense with someone she’s had a very real crush on since junior high?
And what happens when the man who was scared of relationships suddenly realizes he might enjoy being in one?