Kristen Stewart reportedly did not take the shocking news of ex-boyfriend Robert Pattinson's engagement to FKA twigs well.

In a recent interview with Vulture on April 1, T-Pain, who is a friend of the British singer's, explained how they first met -- before accidentally revealing, "She's engaged now, so that's about to be a whole other thing."

When the reporter stopped him and asked, "Wait, she's engaged?" the auto-tune pioneer responded, "Yeah, to ol' Patty. I don't know if she wanted anybody to know that."

However, the "Up Down" hitmaker then tried to cover up his slip by taking to his Instagram account. 

 Added a little #AprilFools to my interview with Vulture Magazine today. Check it out!!!!

A photo posted by T Pain (@tpain) on Apr 1, 2015 at 1:52pm PDT

According to HollywoodLife.com, Stewart "felt devastated" hearing that Pattinson and FKA are getting married, hoping the news was just an April Fool's Day joke.

A source alleged that Stewart was in disbelief because he ended up proposing to the British singer in such a short period of time. She and Pattinson dated for many years. The source said she is "especially hurt" because she and Pattinson talked about possibly getting married. 

The "Twilight" co-stars ended their relationship because the Stewart had an affair with her "Snow White & The Huntsman" director, Rupert Sanders.

"She knows it's her fault she never got to marry Rob, but still hearing that he's engaged still really stings," the source added.

After getting his heart broken, Robert Pattinson supposedly did not feel the need to tell Kristen Stewart about his engagement to FKA twigs.

"Kristen was not told -- he didn't reach out to her and tell her," another source said. "That ship has sailed. He doesn't talk to her -- they have two completely different lives. She is not a part of his day at all. FKA is his life now."