In the clip, Kris breaks down, saying, "You're sensitive and amazing to all these new people in your life, you're just not so sensitive and amazing to the family that you left behind.
She added, "When you feel like you gave your whole life to somebody and the sum of it all was you were a distraction..."
After hearing Kris' words, Caitlyn explained, "It was a distraction from the sense of who I was, it doesn't mean I didn't love you or the kids."
The clip also features appearances by NBA player Matt Barnes and Boy George.
"I Am Cait" airs Sundays on E!