Britt Nilsson has reportedly been slamming "Bachelorette" Kaitlyn Bristowe behind her back, and dating Brady Toops could be the icing on top in her quest for revenge.

A source told In Touch Weekly, "From the very beginning, Britt was out for blood - full on, serious attack mode. Instead of teaching the guys about herself, Britt spent her time in the house throwing Kaitlyn under the bus. She told all of the guys that Kaitlyn wasn't looking for love and that she's fake."

"While Kaitlyn was running around the world with a group of guys and crying about how hard it was, Britt was forming an actual relationship with Brady," the insider added.

"She really thinks it's going to last, and happiness is by far the best revenge."

Us Weekly got the dibs on Britt Nilson and Brady Toops romance as the two are still together although they are no longer part of the "Bachelorette" show.

"They're very happy," the source claimed.

Britt Nilsson was kicked off the "Bachelorette" after receiving fewer votes that Kaitlyn Bristowe. When Nilsson left, Brady Toops left Bristowe to go after her, said the magazine.

"After meeting while filming the premiere episode, the two even secretly attended a Nashville Predators game," the article said.

In an interview with Jimmy Kimmel's show, "Bachelorette" star Britt Nilsson was quite reserved when asked about Brady Toops. She narrated that she cried after finding out that she was booted from the season 11 of the reality TV show.

When Brady Toops took off running after Kaitlyn Bristowe's rival, he found Britt Nilsson crying in her hotel room.

"Bachelorette" Britt Nilsson said, "I guess Chris Harrison felt bad about having let me go, so, he gave Brady my [hotel room number]. It is pretty smooth, it's very gentlemanly. I thought it was sweet...He comes to my door and I was very surprised. It will be on the show next week."