I'd recommend 'Eternal Devotion.' Here, the hero is completely fixated on the heroine, and his actions are driven by this obsession. It's a story filled with intense emotions and drama.
It could be because of her unique personality or charm that catches his attention and makes him unable to resist.
You might want to check out 'Fated Entanglement'. Here, the hero, due to his powerful position and stubborn nature, forces the heroine. This causes a series of conflicts and challenges for both characters as they navigate through their relationship.
In 'obsessed hero romance novels', the hero often has an intense focus on the heroine. He might be constantly thinking about her, like in 'Twilight' where Edward is always aware of Bella's whereabouts and her safety. His actions are mainly centered around her.
A good example is 'Me Before You'. Will Traynor becomes rather obsessed with Louisa Clark in his own way. His feelings grow deeper as they spend time together. And 'The Notebook' is also a great one. Noah is so obsessed with Allie that he spends years pining for her and trying to win her back. His love for her is all - consuming throughout the story.
Well, it could either strengthen their bond or cause problems. If the obsession is healthy, it might lead to a deep and committed relationship. But if it's too extreme, it could lead to possessiveness and trust issues.
You might consider 'Broken Promises'. Here, the hero abuses the heroine due to his own inner demons and past traumas. However, as the story progresses, he realizes his mistakes and tries to make amends.
One popular example is 'Pride and Prejudice' by Jane Austen. Mr. Darcy comes to Elizabeth's aid on several occasions, showing his care and protection.
I'd recommend 'Ever After' by John Smith. It portrays a beautiful married life of the hero and heroine, filled with sweet moments and difficult tests that they overcome together. The characters are well-developed and the story is both heartwarming and exciting.
Well, one could be 'Dark Desires' where the hero's actions towards the heroine are quite tormenting throughout the story.
I'd recommend 'Love's Detour'. Here, the hero is so focused on his own goals that he ignores the heroine's attempts to connect. This leads to misunderstandings and challenges in their relationship.