I wish I could help you, but I can't for the life of me remember something like that.
A few questions:
1) Do you think the book is classified more as a romance novel with undertones of horror?
2) Or is the book a straight horror novel?
3) If you heard some author's name - and many of us here can quote names like some quote from the Bible - would a name ring a bell with you?
4) Do you remember if the book was a very thick book in paperback?
5) Any chance you remember the publisher of this paperback?
NOW: NO MORE QUESTIONS!! 
I want to welcome you to MobileRead. You'll find quite a number of "healthy" discussions, strange personalities, and "normal" people (those are the boring ones!
; in fact, some of us here - GUILTY! GUILTY! - have to control our craziness!
)
Have fun looking around at the various forums.
And we have thousands of free and public domain ebooks for many popular ebook Readers. So, again, let me welcome you to MobileRead.
Don
(Moderator)