Hi, I'm really desperate... I've been searching for this novel for YEARS! I can't remember the title, but the cover might have a dark violet theme, possibly featuring the main character (I'm not sure if the male lead is on it too).
The plot goes something like this: The female main character is reincarnated (or Isekai'd) into a novel(western setting). She has a husband (the male lead), but I can't remember much about their personalities or details of their features. What I do recall is that the original wife in the novel died because the male lead kept having s_ex with her (she was too exhausted from it). I know this sounds weird, but please don't judge me. I think the original wife might have t*rtured, dr*gged, and then, abandoned him, and this was his way of punishing her. Weird, right?
What's the plot of the the novel MC got reincarnated into? The original female lead (who might have been a saintess) saved the male lead from the original wife? But the male lead became addicted to the drug og wife feeding him. So, the very demure, very mindful original female lead is helping him to heal in a way that he also used to retaliate against the og wife, iykyk. Then, when he's finally sober from the dr*g, he retaliate against the og wife. No, the og wife didn't die from too much s_ex, I suddenly remember that she's also kind of sick? She's dying... the exhaustion from the act just hastened her dead.
At one point, I assumed the male lead actually loved the original wife, but after being abandoned by her, he retaliated by using s_ex as a form of revenge. There might have even been a plot twist where the reincarnated main character was the original wife all along.
P.S. I think the title might be something like "I Reincarnated as the Wife of the Abused Male Lead in a Tragic Novel" Or “I reincarnated in a tragic/depressive novel”