"We're definitely keeping it a little bit more private this time around just because we kind of have that luxury that we didn't have last time," Peter, 31, toldUs Weekly while walking the red carpet with Kelley at the Points Guy Awards at Terminal 5 in New York City on Wednesday.
The pilot and Kelley, who met on The Bachelor's 24th season, didn't hold back from showing PDA on the carpet.
"And it's been really, really special," Peter said. "I think we're both enjoying how it's been the second time around and things happen for a reason. And I can say I'm very happy."
And Kelley, 30, agreed that she's "happy," adding, "I genuinely am. We get along, we connect."
Given Peter and Kelley have had an on-again, off-again relationship, they explained why things are different, and better, this time around.
"I think coming off the show, you have to go through a lot of stuff that puts a lot more pressure on you and this time around it's a lot more relaxed, so it's easier," Kelley explained to the magazine.
Kelley, who battles Lyme Disease, also said her health is "okay" and she's "been better lately."
"I've been going through some slumps, but overall, I feel like I've been doing a lot better than I was last year," Kelley shared.
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While Peter and Kelley's relationship seems to be going strong, they won't be spending the holidays together because Kelley's 85-year-old father is having health issues.
"I'm trying to spend holidays with my family as much as I can," Kelley shared. "And [Peter] understands that and he's supportive of that."
Peter's parents, meanwhile, apparently "love" that he and Kelley have reunited and given their love another shot.
"They absolutely love it," Peter said of Peter Weber Sr. and Barbara Weber.
A Bachelor-Nation source told E! News in late September that Peter and Kelley were back together after Peter had "initiated the reunion."
Kelley reportedly "couldn't deny" her chemistry with Peter when they were apart and so she decided to give him another chance.
"Peter and Kelley reunited a few months ago and the relationship progressed slowly over the summer," the source told E! News in late September. "They are committed to each other and are back together."
An insider also told Us at the time that Peter wants to be in a serious committed relationship.
"His feelings for Kelley never went away," the insider said, adding, "They're both happy and looking forward to where things go this time around."
Many fans were surprised about Peter and Kelley's reunion because their breakup was a bad one.
Kelley said on the "Chicks in the Office" podcast in May 2021 that she had told Peter to "get out of my life and lose my number" when they split a couple of months earlier.
Kelley also insisted at the time she'd "just run" from the children's book author -- whom she claimed has childlike-hobbies such as collecting Pokemon cards and playing video games -- if she ever bumped into him in the streets of New York.
Things turned nasty when Peter addressed Kelley's biting remarks during a May 2021 episode of his "Bachelors in the City" podcast, telling his listeners that Kelley seemed to be riding the fame wave and trying to push headlines with her "calculated and disingenuous" statements.
While Kelley noted it wasn't "one specific thing" that led to their demise, she told Mike Johnson and Bryan Abasolo on the "Talking It Out with Bachelor Nation" podcast, "I think it was just a lot of little things. You know what? Peter and I had a lot of fun, but I don't know if, like, I looked up to him in a way that I wanted to look up to my spouse."
Kelley elaborated on how she has that type of admiration for her brothers and her father.
"If I'm in a moment where I need some sound advice and I'm like, 'Okay, who can I go to advise me on this super important decision of my life?' Peter was just, like, fun and games," Kelley explained.
"I could go with him and have fun, but I just think I want more of a man that I look up to."
Kelley suggested that when she attempted to confide in the airline pilot, he wouldn't give her the type of advice that she'd been looking for.
"I didn't look up to Peter in the way that I have always hoped to look up to my husband," Kelley reiterated.
When asked what qualities she was looking for in her future spouse, Kelley shared, "Someone who is super intelligent that can teach me things, like something new every day."
She clarified how Peter was "actually really smart when it came to aviation" and he "used to teach [her] a lot" when they'd go flying.
"Peter is smart, but I don't know. I think I just need someone who is a little more serious-natured," Kelley said.
At the time, Kelley hadn't "heard from" Peter or any of his family at all.
Peter and Kelley briefly met at a wedding venue before The Bachelor's 24th season began filming, so they wondered if their relationship was destined, but Kelley ended up placing fifth on Peter's season because she had trouble opening up and being herself on-camera.