Khloe Kardashian seriously has such a big heart.
"His phone is off. It's been off for, um, about a month." She goes on, "I've been trying to call him forever."
Kris admits she really wanted to wish him a happy birthday to which Khloe replies, "I can't help you there mom if I can't find him."
Watch the above sneak peek and tune-in for the brand new episode tonight to see more drama from your favorite family!
Tune-in for a brand new Keeping Up With the Kardashians this Sunday at 9/8c on E!