Their divorce was finalised last month – and she's been spotted with basketball player James Harden since June.
Indeed, friends expressed concern for Lamar Odom recently when he seemed to ambush Khloe Kardashian outside a Beverly Hills gym at 7am.
In the aftermath, the reality TV star and her family are said to be increasingly concerned for her safety.
Now, in what is described as a "lengthy, emotional and often-incoherent interview" with InTouch magazine, Mr Odom has made a series of incredible declarations, namely that Khloe remains his soul mate, that the duo are still married, that he will never be happy without her – and that any man attempting to romance her is "wasting his time".
Referring to the incident at Ms Kardashian's gym, he maintains: "I did not ambush Khloe. I am not a threat to her."
"That woman is my wife. Without the ring on my finger; with her picture being taken with another man, that woman is my wife," the former LA Lakers player furthermore states.
Lamar has had a particularly rough year: not only was his divorce from Khloe finalised last month – a year-and-a-half after their December 2013 split – but two of his closest friends died in drug-related incidents. The deaths are said to have left him devastated.
In the InTouch interview, he also declares that Khloe is his "soul mate". "I can't control it. We'll never part," he continues. "I would never consider myself serious with another woman.
"To sum it up, if a man is attempting to court Khloé, he's probably wasting his time."
He goes on to describe the 31-year-old KUWTK star as "brave and stubborn, the ultimate caregiver, a smart, intelligent, beautiful woman who has been through a lot, so I understand her pain".
Married from September 2009 (they met just a month before their nuptials), at the time of the pair's split their union was dogged by rumour of his infidelity and drug-taking. Indeed, he now seems acknowledge that he made "mistakes".
"If I made a mistake with another woman, it was a mistake," he says. "Another woman would tell you that Khloe is my wife. It is just the way it is."
The 35-year-old admits that seeing her with other men is "weird," but largely because "I really know how she feels about me".
The magazine reports that when it met with Lamar for a follow-up interview the next day, the athlete suddenly cut the meeting short claiming that he "had to go lie down in a car".