"I can confidently say that I am extremely happy," Cena said.
He also explained if he will be more public with his private life going forward.
"Every experience in life is a chance to know who we are and who we aren't, and just because I've followed an avenue in life doesn't mean I'll repeat the descent on that avenue," he said, referring to his ex-bride and reality show star. Nikki Bella.
"I think if there is a learning experience for me and a suggestion for me, it's okay to be who you are and to set boundaries," Cena added.
John Cena, left, and Shay Shariatzadeh watch Paramount Pictures' "Playing With Fire" premiere at AMC Lincoln Square on Saturday, October 26 in New York.
(Greg Allen / Invision / AP)
"Just because a precedent has been set doesn't mean you have to follow it as long as you lean on who you are," he continued. "If you've done something before and it doesn't match who you are, it's okay to change. It's okay to develop and grow, and that's the journey of life."
On Saturday, Cena and Shariatzadeh made their red carpet debut in New York for their new movie.
In an interview with Entertainment tonightCena stated: "It's a wonderful day for a movie premiere and I had a nice date."
"What's really special about this is that no matter what projects I'm involved in the future, it will always have special meaning because I was able to film a special project and meet someone special," he said.
Nikki Bella and John Cena officially separated again.
Cena was already engaged to WWE fighter Nikki Bella. Wrestling fans may remember the moment when John Cena proposed to Nikki Bella in front of a crowded crowd of 75,000 fans at WrestleMania 33 in Orlando, Florida. However, a year later, Nikki announced that her relationship with Cena had reach the end.
The breakup was a shock to both reality show fans and fighters, as their relationship was frontal and central whenever they were featured in "Total Divas", "Total Bellas" and WWE Programming.
Eventually, Bella found love again with former "Dancing with the Stars" partner Artem Chigvintsev. The couple started dating earlier this year.
Andy Sahadeo of Fox News contributed to this report.