"We are in Kelley's apartment right now [in Chicago], but we do want to move in with each other, hopefully New York City in early fall -- maybe like September, late summer," said Peter, who first teased their plans to move to New York City on the June 8 episode of The Bachelor: The Greatest Seasons -- Ever! on ABC.
"We'd love to live in New York City and this [relationship] is very serious... It's perfect and it's unreal... [so] we're just jumping right into it!"
But Peter and Kelley had agreed at the time they're in no rush to get engaged, tie the knot, or have children.
"We're not on a reality show anymore, we can take our time," Kelley explained.
"We don't need to rush anything. We want to make sure each other is in the right headspace, and there's nothing wrong with that. We're happy and we're living life."
Kelley added in the interview that she and Peter motivate each other to be better and they became best friends. She also apparently doesn't hold Peter's past and dating history against him.
"We've just done a good job of reassuring each other and just explaining why I did things, and owning up to my faults and just being a better person moving forward," Peter noted.
He later added in the ET interview, "Everything I put Kelley through... I'm still working to make it up to her for not picking her, and I'm never going to stop... I truly believe she is the perfect person for me."