Bethany says she met Sarah at a camp for adults with disabilities. She says Sarah came to camp in a wheelchair claiming she had muscular dystrophy, and Bethany became her caregiver.

“The camp is really focused on accepting any disability to be able to come and experience an outdoor lifestyle,” Bethany says. “As her caregiver, it was really rewarding to allow her to have those experiences and to see the smiles on her face.”

She says that after camp, she and Sarah became close friends, until Bethany says she learned Sarah was faking her disability. “I absolutely felt betrayed,” says Bethany.

In the video above from Friday’s episode of Dr. Phil, hear how Bethany learned the truth about Sarah – and the effect it’s had on her. And on Wednesday, see what happens when Bethany and a couple who was also duped by Sarah come face-to-face with her on Dr. Phil’s stage. On Thursday, Sarah is confronted by another former friend who is a cancer survivor. Is Sarah finally ready to change her ways? Check here to see where you can watch.