Romantasy recommendations where the villan is the love interest?

I'm looking for a pretty specific recommendation where I see other posts brush up on but not exactly what I'm thinking about but its where the main girl falls in love with the villan or the bad guy and he also loves the girl with a "I'll burn the world for you" kind of attitude. Doesn't necessarily have to be an enemy-to-lovers trope (although its one of my favourite tropes). I rather a rivalry enemy to lovers then an aggressive "I want to kill you!" enemy to lovers. Anyone of of anything like this??

I tried {The Cruel Prince by Holly Black} and wasn't really a fan of it. It's also a little too slow burn for me. I also don't really care for smut whether its in the book or not.

I prefer standalone stories but if the series is good I don't mind reading it all!

I'm not sensitive to any TW either.