Four Days to Forever by Karen Stivali

Tyler should be happier than ever. With his long-overdue breakup from his overbearing grad school girlfriend behind him, and plum job offers in New York and London, he’s ready to take on the next chapter of his life.
He’s just missing one thing—Caroline.
His ex’s best friend. If she’ll have him, he’d give up everything for her. And he has one weekend to convince her they could have something special.
Caroline doesn’t need convincing to think of Tyler romantically—she’s secretly crushed on him for years. Having him back in her life, trying to win her heart, is a dream come true. But she can’t get past one detail—Tyler’s ex.
Caroline has lived in her shadow ever since they were college roommates. Even now that Caroline is a successful gallery owner, she can’t shake the fear that she may not measure up.
With the clock ticking on his job offers, and increasing worries about the family B&B in Vermont, Tyler is stressed and running out of time. Can he convince Caroline that his love is real and turn their four days into forever?