There are dramas with toxic relationships like in nevertheless or Kleun chiwit (tho ML wasn't toxic in this one, his hate for FL is completely justified). But with most of these dramas, it's always the MLs who makes the relationship toxic or is the toxic one or is clearly way more messed-up than the FLs.

So, Any drama where FL is the more toxic one, or the one who makes the relationship toxic? One I've often heard is It's okay not to be Okay but FL here is actually good, she suffers from ASPD, but otherwise its shown to be a happy go lucky relationship between leads

Any language or no.  of eps will do

Secret Boutique
Misty
Big Issue
Secret Love Affaire
The K2
Reflection of you - here everyone is toxic but it does start with the female leads