Last week, Bachelor Nation revisited Sean Lowe's season and his love story with Catherine Giudici Lowe. On tonight's episode, Chris Harrison guides "Bachelorette" fans down memory lane through Kaitlyn Bristowe's season. 

Season 11 of "The Bachelorette" began unlike any other: Britt Nilsson and Kaitlyn, both of whom appeared on Chris Soules’ season of "The Bachelor," met men in the Bachelor Mansion driveway, and the guys then decided who they wanted as the next leading lady. They opted for Kaitlyn, paving the way for one of the franchise’s most unforgettable seasons.

Kaitlyn forged several friendships among the guys, which still stand strong today. Some of the cast members posted on social media about how they’re feeling looking back at her season, which premiered May 18, 2015.

Take a look below at what they had to say.

Kaitlyn has always been unapologetically herself, which she maintained even during some of the most turbulent moments of her season. On Monday, she posted a photo of herself from moments before her reunion interview with Chris Harrison for the episode.

She began her caption, "This is me, preparing myself for my interview catch up with my man @chrisbharrison after tonight’s episode. I’ve went back and forth on wanting to watch, but because of the support I have here, I’m going to. It will be emotional, and I think really hard."

It continued, "But I’m hoping to be able to look at it with gratitude, talk through it, and know there are worse things going on in the world than re airing my season. Plus the ending with J is my favorite part. ❤️ Will you guys watch with us?"

Her boyfriend Jason Tartick voiced his support for his girlfriend on Instagram, saying he and their two dogs "will be there all day and night tomorrow to support our girl."

No one caused a stir on Kaitlyn's season quite like Nick Viall. He entered the show late in the game and quickly became a frontrunner, much to the other men's dismay. He and Kaitlyn slept together before Fantasy Suites, causing Kaitlyn to receive backlash.

Nick ultimately made it to the final two and began proposing to Kaitlyn before she stopped him in a heart-wrenching moment. Nick posted a clip of the proposal and described his feelings about it in the caption.

"It was like waving at someone who’s waving at the person behind ... but million times worse. TBH I look back on this time of my life and have nothing but positive memories," he wrote. "I just didn’t think ABC would make us relive the entire failed proposal tomorrow night..It really was a season for the ages. You never know how you view things as time passes. Glad to be able to call KB a good friend!"

On Monday, he uploaded a picture of himself, Ben Higgins, and Tanner Tolbert in the back of a car. He captioned it, "Tonight Chris Harrison asks me about my regrets... i have many. Meeting these guys aren’t it."

Teasers for tonight's episode show Nick will reveal something big about his relationship with Kaitlyn. What will it be?

Shawn Booth won over Kaitlyn's heart at the end of the season when he proposed to her and she accepted. They stayed together for three and a half years but broke up in November 2018.

In an Instagram Story video posted Monday, Shawn revealed that he, too, has a big secret to tell. He said, "Tonight feels like as good a night as ever to let you guys know that there is somebody new in my life, and I've been kind of keeping it under wraps for a little bit."

Jared made it to the final four on Kaitlyn’s season but got sent home right before Fantasy Suite dates. Though his relationship with Kaitlyn didn’t work out, he still found love in the Bachelor Nation world with Ashley Iaconetti.

Ashley posted videos on her Instagram Story of herself watching the episode as Jared paced in and out of the room, cringing at certain moments.

Eventual Bachelor Ben Higgins (who we'll see in due time on his own episode of "Bachelor: GOAT") made it to the top three on Kaitlyn's season. On Monday, he posted a photo from one of their group dates, where all the men looked spiffy in suits.

Ben posed alongside Jared, Tanner Tolbert, Nick, Shawn, "Cupcake" Chris Strandburg, and Ben Zorn, and he captioned it, "The boys are back with @kaitlynbristowe tonight on @bacheloretteabc! Ps. Thanks @nickviall for letting me use your shoes for this date even if they were 2 sizes too small. You may not have big feet but you got a large heart."

Nick commented, "A bunch of guys who just didn’t want to like me but ended up loving me."