The Wrong Side Of Kai by Estelle Maskame

When Vanessa's mum died her life fell apart as her dad was battling his grief and her and her sister were left to fend for themselves which made Vanessa acting out and sleeping with random guys easy to do with no one to stop her.

However after breaking off her latest fling with Harrison, she discovers he has leaked a recording of her to their whole school and her life starts to fall apart...

Until Kai transfers in from another school also with a grudge against Harrison and the pair team up to get revenge...

This book was fabulous, I loved the dynamic of a good duo teaming up to get revenge in YA and it was done really well and the twist at the end while being easy to predict was a great twist nonetheless and made me as a reader happy with the outcome of the book overall.