You did it! We figured this one out! It is a truth universally acknowledged (by me for certain) that the Bitchery pretty much knows everything, and really, it's true. Scroll down to see the solution for this HaBO - and many thanks!

Awhile back, Bethany sent this in, and she’s still looking for this book:
The book’s title is (I think) Montana
Moonshine, and it’s about a man hired by a lady’s father to kidnap her
from her wedding in Illinois and bring her back to Montana…It’s a period
novel and they spend the whole thing calling each other by their locations
rather than names. They travel some incredibly roundabout way back to
Montana, and are in love by the time they get there. Her father isn’t
incredibly pleased as they’re having sex by this time.The thing is I read it over ten years ago and I can’t remember the author
or publisher so I can’t find it to read again…it was my introduction to
the romance novel, so there’s a little sentimentality here, but I’d
love to find it.
“Hey! Delaware.” “Yeah?” “I got your Jersey RIGHT HERE.”
Ok. I’m done now. Anyone recall this book?

there’s a little sentimentality here, but I’d
love to find it.