ET has an exclusive sneak peek at this week's episode of Braxton Family Values, in which the "Un-Break My Heart" singer shares with her sister, Trina, that she and Birdman have ended their engagement. 

"We probably just should have eloped a long time ago," Toni says in the clip. "We would probably still be together."

Toni and Birdman announced their engagement in February 2018, but were plagued by breakup rumors earlier this year. As she tells Trina, she's "not ready to talk about it yet." 

"Toni has been so secretive about her relationship, and she is now letting the cat out of the bag? And it's not exactly good news!" Trina exclaims to the camera. "You know what? I'm not going to push the issue right now. I know what it feels like to just need time to yourself to process your personal issues."

What exactly went down between Toni and Birdman is unclear, even to Toni. "I really don't know, Trina, I don't know... just stuff," she tries to articulate, later sharing that she might have "cold feet" about tying the knot. "Maybe I have happiness, and I just don't know how to be happy yet." 

During an interview with ET earlier this month, Toni clarified that she and Birdman were still very much together. 

"We don't know what happened," she said of the split rumors."It just kind of [came out of nowhere]. Someone said it and we were like, 'OK, we'll just ride with it because it'll give us some privacy.' So that's good. But we're good."

This season of Braxton Family Values has also showcased Trina's struggle to move on following the illness of her ex-husband, Gabe, who died in December 2018. Trina is now engaged to Von Scales.