The episode followed Robert’s battle with food addiction with his fiancee Kathryn by his side.
But just why did this episode make such an impact on fans?
TLC announced his death after the Feb. 28, 2018 episode aired.

Kathryn his fiance tried so very hard alongside the Dr. to get Robert a normal life back.
But sadly he passed away."
Oh God, that emotionally wrecked me."

We can only take comfort in his fiancee’s words.
“When he did pass, he was not alone,” she said (viaUSA Today).
“I was there holding his hand.”