Khloe Kardashian had her 40 million Instagram followers wondering who she was referring to in an early morning tweet on Tuesday.
The 31-year-old reality star shared a cryptic quote that read: "A girl once told me to be careful when trying to fix a broken person for you may cut yourself on their shattered pieces."
ET has reached out to Khloe's rep regarding the message.
The Kardashian sister has admitted that, in the past, her desire to take care of her loved ones can make her an enabler.
In Khloe's book, Strong Looks Better Naked, she admitted to "making life too easy" for her brother Rob Kardashian. "I was constantly checking up on him, making sure he had the food he liked, seeing if he needed anything from the store, asking what I could do to make him more comfortable," she recalled. "My sisters said I was babying him and that he'd never leave the house if I didn't let him fend for himself. I argued with them because it was an emotional issue, and emotion tends to cloud your thinking."
WATCH: Khloe Kardashian Shares 'Melancholy' Selfie After Rob's Diabetes Scare
Just last week, ET spoke with Khloe about her reclusive 28-year-old brother after it was reported that he was diagnosed with diabetes. "Rob is back at the house. He's good," she told Kevin Frazier. "My only hope is that maybe this health scare is a wake-up call and he will adjust his life and be more serious about certain things in his life."
Khloe has also been looking after her estranged husband, Lamar Odom, ever since he was found unresponsive at a Nevada brothel. After months in the hospital, the former NBA pro was recently moved to a private rehab facility in Los Angeles, California.
WATCH: Khloe Kardashian -- I Call Rob My Son As a Joke
"The great thing about Lamar is -- and I think because of his athleticism and everything -- he has that strength and endurance and so he's fighting really hard," she said of the 36-year-old's recovery. "I'm really proud of him for that fight and his will to want to get better."
Here's more of Khloe's interview with ET: