Maybe This Christmas by Susannah Nix

Two best friends. Ten Christmases. One happy ending.
When best friends Alexandra and Lucas share a first kiss on Christmas night their senior year of high school, it feels like the best years of their lives are ahead of them.

Then Alex goes off to college, and Lucas stays behind to work at his dad’s construction business in the small beach town where they grew up. Life, as they say, happens. And somewhere along the way these two high school sweethearts find they don’t have as much in common as they once did.
Lucas’s life is on Beaufort Island, and Alex is all about getting away and moving on. So he makes one of the hardest decisions of his life and lets her go.

But every year when Alex comes home for the holidays, fate conspires to reunite the two former lovebirds on Christmas Day. Year after year, through good times and bad, Lucas and Alex meet up, catch up, and reconnect on the anniversary of their first kiss.
Is it too much to hope that one year they’ll find their way back to each other permanently?
Maybe even this Christmas.