Add this to the long list of unexpected Bachelor Nation relationships: The Bachelor's Danielle Maltby is dating Big Brother's Paulie Calafiore.

The reality stars announced their relationship on Monday by sharing the same Instagram post of polaroid snaps of them kissing at a friend's wedding.

Danielle competed for Nick Viall's heart on The Bachelor before signing up for Bachelor in Paradise last summer. While filming the controversial season, Danielle and her longtime friend Wells Adams shared a passionate kiss as she was exiting the show. Although fans rooted for the pair to make it officially after filming wrapped, the pair's friendship never developed into anything more.

Wells, who is now dating Modern Family star Sarah Hyland, did share his well wishes for Danielle and her new beau in the Instagram comments. "This makes me very happy!!!" he wrote.

melting 💓

A post shared by Danielle Maltby (@dmmaltby) on

Paulie competed on the 18th season of Big Brother and is the younger sibling of Big Brother 16 runner-up Cody Calafiore. Paulie notoriously clashed with the other houseguests — particularly the women — largely due to comments that were deemed misogynistic by many viewers. He was involved in a showmance with Zakiyah Everette while on the show, but he famously betrayed her and got her evicted.

Paulie was also recorded on the live feeds calling women "dumpsters" for male bodily fluids and attacked another female houseguest over her breast implants, so if you were hoping this relationship would be Danielle's happily-ever-after, we suggest taking a moment to reconsider.

The Bachelor airs Mondays at 8/7c on ABC. Big Brother: Celebrity Edition premieres Wednesday, Feb. 7 at 8/7c on CBS.

(Full disclosure: TV Guide is owned by CBS.)