I think such novels are quite disturbing. Violence in a romantic relationship is never okay and goes against the idea of a healthy and loving connection.
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.
I'd recommend 'The Hating Game'. Lucy and Joshua's constant bickering and Lucy's initial hatred for Joshua make for an engaging read. The workplace setting and the slow-burning romance keep you hooked throughout.
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.
One such novel could be 'The Knight's Embrace'. In this story, the brave knight saves the damsel in distress multiple times, adding lots of exciting moments.
I'd recommend 'Love's Struggle.' Here, the hero's dislike of the heroine builds a lot of tension and drama as their feelings gradually change. The plot is full of twists and turns that keep you engaged.
One such novel could be 'The Forbidden Love Affair'. In it, the hero initially despises the heroine due to a misunderstanding from their past.
One such novel could be 'Dark Desires' where the heroine is initially terrified of the brooding and mysterious hero due to his dangerous reputation.