Fantasy romance, vampire mmc, true mates

This is what I remember of the book:
Fantasy romance with a vampire mmc, true mates situation, touch her and die vibes, spicy book, fairly recent (about 2021-2024).
Saw a tropes post about the book on instagram, but the post disappeared before I got to the book's name.

Any help appreciated.

It could be one of Christine Feehan's Carpathian books, I suppose. Any more details?