Help find a book, female prot, has a big scar, part of caravan, vampire

I was wondering if someone would help me find a book ive been searching for 1-2 years

female protagonist
romance
the book started with female being part of a caravan circus.
she had a scar starting from her face and on all of her chest due to being struck by lightning or fire i dobt realy remember witch of the two it was.
she meets a vampire and romance happen
if i remember right the boss of the caravan was like family to her since she was an orphan or had lost her parents.

i know its vague but if someone know the book it would be cool to help me. i remember not a lot about it but i remember i realy liked it so i wanted to revisit it to see how it was.

thanks you