Holli's Heart. Highlanders of Heartsgate

Holli Harris hates what she's doing with her life. She's always wanted to be a romance writer, but instead she's ghost-writing space operas to make a living. One of her closest friends, Heather, recently time-traveled to medieval Scotland, and Holli decides to follow, leaving her crummy job behind to hopefully find the man of her dreams. Bryson McClain sees no reason to marry immediately, for as soon as he does, he will have to take on the responsibilities of the laird of Clan McClain.
After the umpteenth lecture from his father, Bryson agrees to marry the next person to come back in time, as both his mother and grandmother have traveled from the twenty-first century. Within minutes of making the promise, he finds Holli in the woods. Will Holli agree to marry the stranger who finds her? Or will she decide to go back to the twenty-first century and the job she hates?