I think this was one of the oddest romance novels I've read thus far.
When Ellen Simpson's mother tells her father (right before running away with some other man) that Emma is not actually his, Ellen leaves and go finds her real father, a man in the military. There she stays with him. When her father is killed, his friend, Charlie Simpson agrees to marry her. Perhaps not the most passionate marriage, but one full of comfort, affection and indeed love is between Ellen and Charlie.
Dominic, Lord Eden after leaving home and joining the military becomes Charlie's close friend. He could often be found in Charlie's company and Charlie even often takes him home. He, Charlie and Ellen share many nights just is comfort around the fire. Although Eden finds Ellen charming, sweet and has the highest respect for her, that is as far as he allows himself to feel for her.
During a ball (Charlie refuses to dance), Eden and Ellen are waltzing when they are bumped into by another couple. They have a moment where they become quite aware of each other as a man does a woman and vice versa. Although this leads to awkwardness, they eventually get past it and continue with their friendship.
At the battle of Waterloo, Charlie dies in Eden's presence and Eden is seriously wounded. Eden swears to Charlie that Ellen and Charlie's daughter will want for nothing. As Eden begins to pass out, he begins to repeat Charlie and Ellen's address in nearby Brussels over and over in his head and when fading in and out he is delivered to Ellen's house. By the time he reaches there he is near death, but he does get his message to Ellen that Charlie is dead before he passes out.
Ellen, needing to keep her mind away from that fact, nurses Eden back to health. Unfortunately that night where they became fully aware of each other has been in the back of their heads and through the healing process, they become lovers for 6 days. Ellen "wakes up" when Eden's sister catches them snuggling/kissing and Ellen becomes upset (more with her self as she feels she has tainted Charlie's memory by sleeping with the best friend) and doesn't want Eden anywhere near her anymore.
Eventually time finds them in London and Eden can't keep Ellen out of his mind no matter how he tries. And... there is the promise that he made to Charlie, so Eden seeks Ellen out. Although extremely awkward, they eventually work through the awkwardness only for Eden to discover that Ellen is pregnant. Angered beyond words, they have to start again and eventually, with time spent at Amberly with Eden's family (who are also great friends of Ellen... they also invited her to stay as a way to "pay her back" for saving Eden's life) Eden convinces Ellen to marry him. He is delighted when she accepts because he has never stopped loving her, the woman he has been looking for all his life.
And so, he is rather distraught whenever he brings up marriage but she shies away from talking about it. When he discovers that she thinks he is only marrying her because of their child, he confesses to her that the baby is only part of the picture; he wants to marry her because he truly loves her. She, in return, tells him that although she will always love Charlie, will always have a special place in her heart for him, she loves Eden just as fierce. And she can't see herself living her life without him, either... they both became entangled in a web of ...love.... Sappy, true, but Balogh does make it work.
Mixed in the book are characters from he previous book as well as a few new ones. The book is very slow paced and at one point, as much as I wanted to just skip ahead, I couldn't because I was afraid I might miss a little detail. This story focused more on the deep feelings of love that develops over time rather than physical attraction and physical aspects of love.