Feud Explodes! Teen Mom Kailyn Lowry Attacks Jenelle Evans Over Pregnancy Diss

Kailyn Lowry's feud with enemy Jenelle Evans finally hit its breaking point! Lowry ripped Evans on the Teen Mom 2 after show for congratulating her for her pregnancy before Lowry confirmed the news. RadarOnline.com has exclusive details on the co-stars' latest feud!

"Jenelle tweeted something that she heard from the crew before I announced it," Lowry said on the live special. "I wasn't planning to announce it that way. I didn't get to do it the way I wanted."

Lowry said how she wasn't sure if Evans congratulated her to be a "smart a**." She added, "We haven't always been on good terms."

But Evans was quick to deny Lowry's claims. She exclusively told RadarOnline.com, "She apologized because it wasn't me, it was Javi Marroquin."

Although Marroquin denied the claims too, Lowry only apologized to Evans.

"I'm so sorry to Jenelle," she tweeted.

An insider close to Lowry revealed why the co-stars are always fighting.

"They just haven't always seen eye to eye at different times throughout the years," the source said. "She did feel bad about calling her out. Once Jenelle explained the situation to her privately, she did apologize."

As RadarOnline.com readers know, Lowry has feuded with Evans in the past when she made fun of her mystery illness.

"Your attitude will kill you one day," Evans tweeted to Lowry. "No wonder you feel the world's against u… So you pick on me?"

They feuded another time when Lowry blasted Evans for commenting on her plastic surgery during an interview.

"When your cast mates subtly throw shade at you. It's cool though," Lowry tweeted, as Evans responded, "Sometimes you just have to block people in life that you once believed to be your friend."

Evans then tweeted that she's always been the "black sheep of the group."

RadarOnline.com was the first to report that Lowry, 24, is expecting her third child with her third baby daddy. The MTV star confirmed the news on her blog hours after the story broke.