Adams is in a relationship with a New Zealander named Vinnie Bennett. Bennett is also a fast-rising actor. He has featured in movies such as Human Traces, Fantail, Beyond the Known World, The Shannara Chronicles, and Ghost in The Shell. In 2017, he was named amongst four international rising stars at the Toronto Film Festival.
Adams and Bennett reportedly commenced their relationship in 2017. Even though the couple is keeping their relationship private, they do not hesitate to express their love for each other online. In September 2017, Adams used her official Instagram handle to wish Bennett a happy birthday.