Update: Rob Edward to Jennifer Petkov: 'Kathleen would have forgiven you, so I forgive you'

Kathleen Edward

, and now the Trenton woman who taunted her with reminders of her disease will apologize on a national stage.

Jennifer Petkov, who became the subject of international scorn after

, is expected to apologize to her family during an episode of "Dr. Phil" scheduled to air today.

Kathleen suffered from Huntington's Disease, a degenerative brain disorder that also claimed the lives of her grandfather and mother. Petkov previously admitted that she posted an image depicting

and another showing her dead mother in the arms of the grim reaper.

In a preview video on the Dr. Phil website, Petkov and her husband reflect on the Facebook feud. "I'm in disbelief that I did it in the first place," Jennifer says. "I look back and I'm so ashamed and embarrassed of my actions."

The episode, including the "Unforgivable Acts" segment featuring the Petkovs is expected to air at 5 p.m. in Metro Detroit.

Update

: This post previously suggested the "Dr. Phil" episode featuring the Petkovs would air at 9 a.m. However, local CBS affiliate WWJ airs repeats each morning and will broadcast the new episode this evening at 5 p.m.

Update: Rob Edward to Jennifer Petkov: 'Kathleen would have forgiven you, so I forgive you'