You Again? by Nick Spalding

Amy and Joel’s honeymoon in the Maldives was the perfect week of love, sun, sex and a free minibar…but unfortunately, it was also the high point of a marriage that quickly descended into an absolute disaster zone.
Eight years on, they’re back in paradise, trying to recreate the magic with new partners. What a crying shame they’ve picked the same week to do it…
Trapped together on an island small enough to spit across with the wind behind you, Amy and Joel pick up right where they left off: at total loggerheads. And so begins a hideous week of rivalry, one-upmanship and score-settling—as each tries to prove they’ve now comprehensively won at life.
The thing is, hurt and pain are strongest where there was once love. And what if being back in this island paradise, with all its wonderful memories, sets sparks flying in more ways than one?