On Circus Lane by Lily Morton

The first time Bee Bannister met Tom Wright, he couldn’t stand him.

Everything about the man aggravated him—his perfect hair and body, his confident arrogance, and the way he looked straight through Bee.
Which is why it’s such an unpleasant shock to find that he’ll be sharing space with him while on a Christmas holiday with friends in Scotland.
However, as the days fly by and snowy Edinburgh begins to work its magic on him, Bee discovers that sometimes first impressions can be very misleading. Tom is kind and funny, and somehow, rather than looking through Bee, he actually sees and likes all of him.
The two men grow closer, but will Bee follow his heart or his head when the holiday ends? And can relationships that start so badly ever lead to love?