In the clip, Khloe complains about her broken Blackberry, mainly because it contains an important phone number -- Lamar's.
"Why do you need Lamar's number?" Kim Kardashian asks when she realizes who her younger sister is trying to reach.
Khloe quickly responds, "So I can check on him. I haven't had my Blackberry all week since I've been here 'cause it's broken. And I wanted to make sure he's okay. Can't I do that?"
After Kim tells Khloe she deserves better, the clip jumps to a solo interview with Khloe, defending her decision to stay in touch with the basketball star.
"Lamar and I loved each other deeply, and I don't believe in just acting like that relationship never existed," she says. "Things happened, but that doesn't just stop me from caring about him or loving him."