The Best Man Plan (Boots and Bouquets #1) by Jaci Burton

Three days before Erin Bellini's wedding, her fiance breaks up with her...in an email.

Hurt and embarrassed, she turns to veterinarian Jason Callum, who's both the best man and the hottest guy she knows. But Jason wants a lot more than just a one-night stand with the woman he's cared about for years. He's intent on taking things slow, determined to show Erin what real love can look like.

Suddenly Erin finds herself with feelings she never planned on having again - she just isn't sure she can trust her instincts. After all, she made a terrible choice with her ex-fiance.

But Jason intends to convince her that he's the best man for her, and that what they have together is a true love that will last forever...