I LOVE an obsessed 'you have to marry me'  villain and I need a new fix, examples are:

- The Kings Woman. LOVE the vibes  here.
- Grand Prince. Loved that one too but they didn't get enough screen time together for me.

- Princess Wei Young. LOVED The villain in this, I had to fast forward until they got more screen time together though but the vibes are right. 

- Empress Ki i saw as well so that's done. 

I have no access to Scarlet heart though it's recommended.  I've seen pretty much ever colonial era chinese ones so those are out, I want older than that anyways. 

- red sleeve I dropped.

- Mr queen, I don't like gender reversals.

Any recommendations here are welcome, korean or Chinese for this. 

If you don't mind xianxia:

And:

A historical Korean drama featuring a villain obsessed with the female lead is "Mr. Sunshine." In this drama, one of the main antagonists is deeply devoted to the female lead, a young, privileged woman, and goes to great lengths to protect her, despite his love being unrequited. 

Les Belles: historical cdrama, with a lot of humour, it's quite light and funny, and the villain is very much obsessed

Love & Bid Farewell : The ML gets very obsessed with the fl to the point of insanity. He is certainly the villain and goes to extreme lenghts in order to keep her . He is so unhinged and toxic.