Catalina came across as somewhat self-centered, especially when

Luke didn’t arrive at their planned meet-up at the hospital. She really should not have assumed that his absence meant he didn’t like her. After all, he’s a doctor! She should have known that emergencies in hospitals can occur, particularly since 1) she is a nurse and 2) it was Luke’s shift. I found it irritating that her thoughts quickly turned to the idea of Luke getting cold feet because they had kissed the night before.

 
 
As for Luke, I found him to be a rather bland character—the typical swoon-worthy type you often find in romance novels.
 
The epilogue also bothered me. Since this is only a novella, I questioned whether an epilogue was even necessary.
 
Overall, I can't really recommend this story, as it didn’t bring anything new to the table. If you're interested in holiday romances, there are certainly better novellas and full-length novels out there.