Looking for a book but I cant seem to remember the author or title and it has been making me crazy. The book is a romance and I think it is a menage romance. The heroine witnesses a hit and run at the start of the book and rescues the mother and children in the car. It turns out the guy that hit them is the womans ex and was trying to kill her for leaving. He ends up setting his sites on the heroine as well and attacks both the heroine and his ex wife throughout the book. The Ex Wife ends up staying with her parents and he attempts to burn the house down. Think one of the hero/ heroes might have been a paramedic or firefighter.That is what I remember about the story. Please help me find out what book this is.