It's a spooooOOOooOOkky pick of the week with Erin Sterling's "The Ex Hex"! As Jordan notes, think a southern Practical Magic mixed with Halloweentown.
https://www.goodreads.com/book/show/56554626-the-ex-hex
And if you're looking for something similar...
"Burn for Me" by Ilona Andrews
https://www.goodreads.com/en/book/show/20705702
"Love on the Brain" by Ali Hazelwood
https://www.goodreads.com/en/book/show/59571699
"Moon Called" by Patricia Briggs
https://www.goodreads.com/book/show/71811.Moon_Called
