In an interview with ITV's "Lorraine" show Wednesday, Jonas responded to Swift's comments last month expressing regret for blasting the "Sucker" singer for breaking up with her "over the phone in 25 seconds" back in 2008.
"It's something that I was probably feeling pretty bad about when I was younger," Jonas recalled. "At the end of the day, I've moved on. I'm sure Taylor's moved on." He added, "It feels nice. We're all friends. It's all good. We were so young."
Last month, when asked about her biggest act of teenage rebellion during a game of "Burning Questions" on "The Ellen DeGeneres Show," Swift referred back to her 2008 appearance on the same show, when she was 18 years old.
"Probably when I put Joe Jonas on blast on your show," she said. "That was too much. We laugh about it now, but that was mouthy, just some teenage stuff there."
"That's held onto you because I don't remember that at all," Ellen admitted.
At the time, Swift was promoting the release of her second album, "Fearless," which featured a lot of songs about a lot of boys and young relationships. She was pretty fresh off her breakup with Joe at the time and said she was able to get into the studio and pump out a song about it, "Forever and Always."
"We haven't talked since, but you know what, someday I'm gonna find someone really really great who's right for me," Swift said back in the day. "When I look at that person, I'm not even going to remember the boy who broke up with me over the phone in 25 seconds when I was 18."
Jonas spoke about the spontaneous ceremony, which was live-streamed by guest Diplo on Instagram.
"We had a little bit of planning to do with that," he said. "It was unexpected to go live on Instagram and see so many photos and for the Elvis to do interviews. But we kinda laughed it all off. It was nice to get a couple friends together."