Amber Portwood has quit Teen Mom OG, but according to her arch nemesis Farrah Abraham, it won't be for long.

The reality stars got into a heated fight on the reunion episode of the MTV series last month, and Farrah, 25, wasted no time in slamming her co-star following her unexpected announcement.

MORE: Farrah Abraham Goes on Twitter to Diss 'Teen Mom OG' Star Catelynn Lowell — Find out What She Said

"I'm out of the drama. None of the girls will quit—they like the attention, need the money and their boyfriends need the money too much to quit," Farrah told E!. "I get that Amber is embarrassed of her actions but she flip-flops all the time. She will be right back to filming. This is so dramatic. She could quit and not make it public if she was truly done."

Amber, 26, announced she was leaving the show due to "lack of respect" on social media late Thursday night.

"Sad to say but I'm not going to be apart of #Teenmomog. The way I have been portrayed and treated is unfair. @MTV sending all my love," she tweeted.

For a look back at Farrah and Amber's feud, click through the gallery below!