"So, Christine made a choice, and that's kind of where it's at," he continued. "She chose to go, and it's a blessing and a curse."
"It's been very, very, very hard. But it was her being brave enough to do it, because I was never going to do that," said Brown.
Christine was also the first of the exes to get remarried, marrying David Woolley earlier this month.
"I honestly haven’t witnessed much of it," he added. "Her and I don't associate almost at all."
Kody also discussed how the backlash to the show affects him after most viewers have sided with his ex-wives.
"It affects me differently than it affects the viewer because I've got somebody trashing my reputation and I'm going, 'Holy cow. I can't believe that's happening,'" said Brown.
"And the public’s just going, 'Oh, we always thought this about you.' … There's no getting used to that level of criticism. I have to remind myself [that] your opinion of me is none of my business."
Kody married his first wife Meri in 1990, before Janelle joined the family with a spiritual marriage in 1993. Christine was next, spiritually marrying into the family in 1994, before Robyn did the same in 2010. Kody then divorced Meri so he could legally marry Robyn in 2014.