Brittany says when she started dating her ex-boyfriend nine months ago, everything was going great.

“I was well-respected, taken care of financially, and he went out of his way to do things to benefit me,” she says.

TELL DR. PHIL YOUR STORY: Life in crisis?

However, Brittany says everything changed in August, when she claims she found inappropriate text messages and learned he was leading a double life and was engaged to a woman in another state.

“When I confronted him, he was nasty. He acted like it wasn’t that big of a deal. He basically insinuated that I was nothing more than a booty call,” Brittany claims. “It was like a slap in the face.”

WATCH: Man Claims Ex Who Says She’s Pregnant Is Meddling In His Life: ‘I Just Want Her To Leave Me Alone’

Brittany, who says she is 25 weeks pregnant with his child, claims her ex completely cut her off and is now questioning if the child is his.

“He’s put me through hell, and I want to make sure that other women don’t have the same experience,” she says, turning to Dr. Phil for help.

Is Brittany being completely honest? On Tuesday’s episode, see what happens when Dr. Phil confronts her about some of her alleged behaviors. And what happens that leads her to walk off stage? Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: Conflict so big it needs a Dr. Phil solution?

Dr. Phil’s Backstage Conversation With Guest: ‘I Am Through Being Manipulated By You’