WWE Superstars John Cena & Nikki Bella End Engagement

LOS ANGELES (CNN) - WWE stars John Cena and Nikki Bella have ended their relationship. The wrestlers were together for six years and, in April 2017, Cena popped the question at WrestleMania 33.

Bella posted the news Sunday on her official Instagram account. "While this decision was a difficult one, we continue to have a great deal of love and respect for one another," she wrote. "We ask that you respect our privacy during this time in our lives."

The pair were also featured in the E! reality show "Total Bellas," which centered around their relationship and that of Bella's twin sister, Brie, and her husband, wrestler Daniel Bryan.

The same day that Nikki Bella posted the announcement on Instagram, Cena posted a tweet about situation. "Hardship, loss, and humility are extremely difficult waters to navigate, but perseverance thru them builds a strength to withstand anything life throws your way," the tweet read.

The wrestler-turned-actor recently told People magazine that he already felt married to Bella. "People come up to me and say, 'I love watching your wife on television.' And I love that, so that happens to me 10 times before it would be a, 'Yo, man, I love your work,'" he said. "It's always, 'I love watching your wife on television.'"

The couple was reportedly set to wed in May.

(© Copyright 2018 Cable News Network, Inc., a Time Warner Company. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)