Title: Marriage Takeover
Description: Warning: it ends abruptly.  just like the GR reviews say. 
Recommend - read book before reading the GR review by StMargarets 

Official blurb:
Cassandra was determined to impress Lang Dalton, her fiance's high-powered boss -- and his glamorous party seemed the perfect opportunity. Only it turned out to be a setup -- Lang wanted Cassandra for himself!  Cassandra refused to let Lang hijack her wedding plans, but he had a seductive hold over her: he was gorgeous, sexy -- and he was blackmailing her. . . 

Spoiler alert: Hero has blonde hair! Shocking! 
StMargarets' GR review has huge spoilers, 
But it Is very entertaining, 
 recommend reading that review after you've read the book 
The other reviews are okay to read.
Subjects: Fiction, romance, contemporary
Places: California, Las Vegas (Nev.)
People: Lang Dalton, Cassandra Vallance