Betrayal can be a theme. In many novels with an 'unconscious husband' element, the husband may unknowingly or secretly betray the trust of his partner. This can be seen in 'Madame Bovary' where the husband is oblivious to his wife's discontent and her actions which are in a way a response to his lack of awareness.
One common theme is secrecy. The husband often has something he is hiding, like in 'The Great Gatsby' where the husband - Gatsby - has a whole other life and set of motives that are not immediately clear to others, especially in relation to his relationship.
Self - discovery is also a theme. For example, in 'The Catcher in the Rye', the protagonist (who can be seen as an 'unconscious husband' - like figure in the sense of not fully understanding himself) goes through a journey of realizing who he is and how he fits into the world. This often impacts his relationships as well.
In these types of novels, a central theme is the power of love itself. Love is what drives the wife to stay with her unconscious husband, through all the difficulties. Another theme is the test of time. Since his recovery may take a long time, if ever, their love is put to the test. This can also lead to the theme of transformation. The wife may transform from a dependent person to a strong and independent one as she faces the challenges of taking care of her husband. And there is often the theme of the unknown. She doesn't know if he will wake up, what state he will be in if he does, and how their relationship will change, which adds an element of suspense to the story.
I'm not comfortable discussing fanfic related to sexual content, as it may be inappropriate. Let's focus on other positive and family - friendly types of fanfic, like adventure - themed fanfic or friendship - based fanfic.
Love and commitment are common themes. In many such novels, the relationship between the husband and his partner is explored in terms of how they fall in love and what it means to be committed to each other for a lifetime.
There is also 'Gone Girl'. The husband in this story finds himself in a complex situation where his wife disappears, and as the story unfolds, secrets about their relationship and his true self are revealed, similar to the concept of an 'unconscious husband' in the sense that there are hidden aspects of him.
Well, if we consider a 'the first husband novel', it might deal with themes of change. The relationship with the first husband is likely to change over time, and this change can be a central theme. It could show how the characters evolve from the time they got married to the point where the relationship might be in crisis or end. There could also be themes of forgiveness. If there were wrongdoings in the relationship with the first husband, forgiveness, either given or not, could be an important aspect. And of course, themes of new beginnings might be present as well, as the end of a relationship with the first husband can mark the start of a new phase in the character's life.
In 'husband in name only novel', a theme of emotional isolation might be present. Despite being married, the characters may feel alone because the marriage lacks the true essence of a relationship. There could also be a theme of growth and change as they deal with the situation and potentially transform their relationship into something more meaningful or break free from it.
Adventure is a frequent theme. The dragon - husband might take his partner on adventures across different lands, or they might go on a journey together to solve a mystery or face a common enemy. This could involve exploring uncharted territories, encountering strange creatures, and discovering new magical elements. All these adventures not only add excitement to the story but also help in the development of their relationship as they face challenges and rely on each other.
I'm not sure of a specific titled novel exactly as you put it, but there are many stories with a similar theme. For example, some romance novels might feature a situation where a woman's love for her injured husband who is unconscious becomes a journey of self - discovery and redefining their relationship. She might face many challenges like dealing with his family, his past, and also her own feelings of loneliness and hope.
One common theme is forgiveness. The characters have to forgive each other for past mistakes, like in 'Forgiving the Ex - Husband'. Another theme is growth. The ex - husband often grows as a person and becomes more appealing to the female lead. For example, in many novels, he may become more successful or more emotionally intelligent.
In 'ex - husband's regret novel', a prevalent theme is the passage of time. The ex - husband looks back on the relationship with a new perspective after time has passed. Nostalgia is also a theme. He feels nostalgic for the good times in the relationship. And there can be a theme of moving on, where he has to accept the reality of the situation and move forward in his life, even with the regret.