Though I enjoyed this book, I am not sure about the HEA plus I have some issues with things left unexplained. Like why they broke up ten years ago because from all indications and talks the hero cheated, yet this was never talked about or even mentioned, hell the heroine never wonders about his fidelity at all. At the start there is also talk about his various broken promises yet they are not touched upon. I found it weird that the book just covered all these up. And even at the end the hero's commitment issues were not resolved IMO.
The whole he not having anybody else but his ex to take care of his nephews was too convenient and I am not sure he deserved the heroine. He was a playboy plain and simple.