Khloe Kardashian's personal problems are starting to take center stage on "Keeping Up with the Kardashians."

During last night's episode, Bruce Jenner organized a family bonding trip into the desert ... where they went hunting for aliens. Seriously.

But the fun took a backseat to Khloe's ongoing issues with husband Lamar Odom, who has been acting increasingly bizarre as the season continues.

It quickly got awkward around the campfire as Lamar started obsessively calling Khloe and her family members.

"There’s a lot of emotional issues and as much as I’m trying to enjoy going camping with my family I also have to cater to Lamar’s needs," Khloe confessed to the camera. "It’s really scary when nothing’s really working and you know if you give up no one in his life would be able to help."

The struggles reached a boiling point at the end of the episode, as Khloe's assistant called saying that Lamar was missing. It was clear Khloe was distraught throughout the episode.

"You're not my child, I can't lock you in a room -- as much as I would like to," she later confessed.

As TMZ previously reported, Odom went missing back in August, as friends and family members feared he was on a drug binge.

His relationship with Khloe has been strained since, though the two reconnected at a Kanye West show last week. While they were photographed together, they're not reconciling -- she's just supporting him through his recovery.

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