Angel falls Book

This book should be classified more as "inspirational romance" than romance. It is heavily tinged with Christian overtones and contains absolutely no steamy scenes.
Mikaela Campbell sustains a head injury in the first chapter and spends the majority of the book in a coma. Her husband of 10 years, Liam, and her children, Jacey (16) and Bret (9) share their memories with her trying to wake her up. When Liam discovers she was married before, to famous movie star Julian True, and that she responds slightly to Julian's name, he loves her enough to call him and see if maybe he can pull her back from the brink of death. Obviously she wakes up, then has to deal with the fact that she's been lying to her family for years and also choose between Liam and Julian.
{SPOILERS}
I find it very hard to believe that no one in town realized the lady married to the son of the town founder used to be in tabloids. I find it very hard to fathom that once he shows up in town, no one figures out why he's there as well as the obvious paternity of Mikaela's oldest child, Juliana Celeste (Jacey). I find it very hard to believe that the famous movie star meets a poor girl in a diner and can't stop thinking about her, so marries her, then leaves her, but still she's the only woman he's ever loved.
Despite the very obvious need for a suspension of disbelief in order to read this book, I found I couldn't put it down. I can't figure out why. The writing isn't all that great (see also: Mikaela's mother's dialogue being loaded with Spanish words, but only when they're so similar to their English counterparts that the average reader obviously knows what she's saying), the characters aren't all that compelling (although Hannah does give a different 'voice' to the omniscient narrator when focusing on each of them), and the plot is almost cringe-worthy. I just had to keep reading. I don't know that it's even because I wanted to know what happened next. It was pretty obvious what was going to happen next the whole time. I don't know. Whatever, it was an okay book.