Marco was Charlie's boss and a doctor who specialized in romances and emotions of the heart, more typically that you shouldn't have any. It should just be smooth and emotionless, therefore you don't have high expectations. When he met Charlie and she started working for him, that all went out the window.
Charlie was working for Marco, it was love at first sight but she had been hurt before and now has a child to look out for first. He ex-husband Greg left her along and pregnant, taking half of their money. Greg has very little time for their son and Charlie feels he is missing out on having a father figure. So when Marco starts taking an interest, she's excited.
When Charlie and Marco get together, it's passionate, dramatic and overall wonderful. He is the perfect father figure for her son, so far. Not to mention the fact that he is good in bed but she's in love with Marco and she can't handle anything less than love. Will Marco be able to love her?
I think the book was wonderful, the emotions were high and I of course love the happy endings. The only issue with the book is the publicist, she's a harpy and always trying to screw things up between Marco and Charlie. If she was based on a character in real life, I'd of smacked her.