@khloekardashian / Instagram 1 / 6
@khloekardashian / Instagram 1 / 6

Stay strong, Khloe Kardashian! The 29-year-old "Keeping Up With the Kardashians" star seems to be putting on a brave front amid reports that her husband, Lamar Odom, is allegedly battling a serious substance abuse problem. Kardashian shared a somber -- yet gorgeous -- selfie on Instagram Wednesday.

PHOTOS: Khloe and Lamar in happier times

In the close-up shot of her face, Kardashian stares into the camera while showing off pouty lips and ombre hair. She also tweeted on early Thursday morning, "Wonderful Wishes and Divine Dreams." In an earlier tweet on Aug. 25, Kardashian addressed rumors that she had separated from husband Odom, 33. "Really hard to sit here and listen to people talk [expletive] about my family!" she tweeted. "[Expletive] you and shame on you! I'm too protective for this [expletive]!"

PHOTOS: Khloe and Lamar's wedding

Though the rumors that the couple of nearly four years have formally separated are false, multiple unnamed sources in the current issue of Us Weekly state that the reports that Odem, an NBA free agent, is battling a drug addiction are true.

"The addiction had taken over their marriage," a mutual pal told Us. "The problem is cocaine. He would be high for three or four days at a time."

PHOTOS: Khloe's red-carpet transformation

In order to try and save her husband and their marriage, a Khloe confidante told Us she gave her husband an ultimatum to either get help or leave.

But the battle is taking its toll on Kardashian. "Khloe has seemed very unhappy lately. She's not herself," an insider said. "It's heartbreaking to see how unhappy she is, because she is in love with him. It's so sad."


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