Witchy and the Beast by Virginia Nelson

He was a douchewaffle long before a spell made him a monster, but she might be just the witch to break his curse.

Iola Pennybreaker had an awful relationship with her father, and that was before she found herself spelled to the middle of nowhere West Virginia. Apparently, her father was captured by a Beast… and can only be freed if she’ll take his place.
Which sounded kinda like a fairytale, except she isn’t a huge fan of her father and less of a fan of being a prisoner, even if the prison in question is a mega-sweet castle. But there is something about the Beast, so she and her familiar decide to help the guy out.
Makeover, anyone? She tries berries, spells, and a trip to her favorite hair magician, but Iola can’t seem to fix the biggest problem—Beast’s self-confidence. When they team up to save a trio of baby raccoons, she begins to notice something…

Maybe she is just the witch to tame this particular Beast.