On the Friday night, Jan. 29, episode of WEtv's reality TV series "Marriage Boot Camp: Reality Stars," tension boils over for former "The Bachelor" contestant Catherine Lowe as she lashes out at her husband Sean. In an exclusive sneak peek obtained by People, Catherine storms out on Sean after she accuses him of not sticking up for her during an argument with another cast member.

The clip opens with an argument between Catherine and former "Bad Girls Club" star Sarah Oliver's tattoo artist boyfriend Jimmy "Inkman" Coney. After Catherine accused Ink of mocking her, Sean steps in and tells Ink to drop the conversation.

"Ink thinks that the world revolves around him," former "Here Comes Honey Boo Boo" star June "Mama June" Shannon explains in her on-camera interview, "and Catherine thinks the same thing we do - that Ink has a f--king opinion about everything."

"Thanks for standing up for me, Sean," Catherine says as she storms out of the room.

"He did. He told him, 'be quiet,'" Oliver says, jumping in to defend Sean.

"Sean and Catherine play this 'perfect thing' and now they're bickering, fighting over something minor," Ink says in his on-camera interview.

"She was really mad at Sean and really mad at herself for not being real in this house," Oliver says, and Ink agrees.

"Please leave me alone, please, like really?" Catherine tells Sean outside. "You think it's okay for him to mock me?"

They argue back and forth until Catherine asks, "But you had nothing else to say?" and Sean walks away.

"When it's somebody being very disrespectful to your wife, it hurts me so bad that I feel neglected in that moment," Catherine tells her husband in their on-camera interview.

Watch the full sneak peek below and be sure to catch Friday (Jan. 29) night's episode of "Marriage Boot Camp: Reality Stars," airing at 9 p.m. on WEtv.