Currently, the 57-year-old is on leave from the show while he receives treatment for plasmacytoma myeloma.
Du Bois explained that he had been cooped up in his hospital room for the last two-and-a-half weeks, and had struggled with an infection in the days prior to Keller’s visit.
“I got a little infection, which happens in this situation. The chemo’s job is to take your white cells down to zero.”
He also said he has struggled being separated from his twins Arabella and Bennett as they started school this year, but said he had tried to prepare himself as best as possible for being hit with treatment.
“Since the day I found out about this, and as you know, because you were one of the first people I told, I was really angry, but I said, this can’t be my time. This can’t be my time. So I just prepared myself as best as I could and I got myself physically fit, fitter than I have been in a long time, quite frankly.