In March, Jax turned face after being insulted and betrayed by former best friend, Raw Women's Champion Alexa Bliss, who body shamed her and made fun of her personality. This led to a title match between the two on April 8, 2018, at WrestleMania 34, where she won the match to capture the Raw Women's Championship, marking the first title win of her career. In a rematch between the two, that took place a month later at Backlash on May 6, Jax went onto defeat Bliss and retain her title. In May, Jax started a feud with Ronda Rousey whom she challenged to a title match at Money in the Bank pay-per-view. During that feud, Jax briefly returned to her villainous theatrics. At Money in the Bank, on June 17, Jax lost her championship back to Bliss, who interfered in her match and attacked both Jax and Rousey, cashing in her Money in the Bank contract (which she won earlier that night). A month later, on July 15, Jax invoked her rematch clause at Extreme Rules, but was unsuccessful in regaining the title in an extreme rules match.