\"It was crazy. I had no idea at all that it was going to happen -- that she was going to propose,\" Childers said. \"Having those two people be there -- that I literally love -- we've both loved them for over 10 years, so it was really just the most insane thing.\"

\"Both of them were so supportive and sweet. It was so cool. Sophia Bush cried, which was crazy to me,\" Childers continued.

\"I cannot even believe that they cared so much and were so ready to support us in this way,\" she added.

“Six billion people in the world. Six billion souls. And sometimes, all you need is one.” THANK YOU @HilarieBurton and @SophiaBush for helping me propose to the love of my life today?????? pic.twitter.com/EDI3sGwt40

— alison briggs (@itsyoupsawyer) February 24, 2019

Childers and Briggs say the show has been extremely impactful in their relationship -- it's the reason they met in 2015.

\"We both just started tweeting about 'One Tree Hill' and kind of found each other through Twitter that way,\" Childers shared. \"We eventually both joined this group chat for Hilarie Burton fans, which is kind of how we started talking.\"

\"It has just such touching story lines, and a lot of characters are super relatable. I very much relate to Peyton and being a little sad all the time,\" Briggs added with a laugh.

the 3 loves of my life!!!!! pic.twitter.com/pUpU2GUuwI

— alison briggs (@itsyoupsawyer) February 27, 2019

Childers also found that she could identify with the story lines and characters on the show.

\"I always thought it was interesting that they're in really non-relatable scenarios -- they're all like famous and writers and actors and whatever they're doing -- and still at the heart, all the characters are so relatable, even though the situations are so out there,\" she said.

\"I started watching the show with my mom when I was so young. I was probably about 9 or so, and that was something we did together,\" she added. \"It kind of always meant something to me in that respect, and I just absolutely love the story as well.\"

View this post on Instagram

A post shared by cydney (@cydchilders) on Feb 27, 2019 at 12:35pm PST

Briggs also wrote that the show comforted her in her \"darkest hours\" and gave her \"a place to call home,\" in an Instagram post.

After the proposal, the coupled shared that Burton congratulated them \"a billion times\" and even jokingly asked them to name their first child after her.

\"It was a HUGE honor today to be a part of this beautiful couple’s engagement!!\" Burton tweeted. \"Alison, thank you for including @SophiaBush and me. We are so happy for you lovebirds!!!!! Xoxoxo.\"

The two have not set a date and are planning to have an extended engagement.

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