Lamar Odom is reportedly upset about estranged wife Khloé Kardashian's recently rekindled romance with French Montana and is now ready to finalize their long-delayed divorce.

According to sources, Odom thinks Kardashian's reconciliation with the Moroccan emcee was uncalled for.

"Lamar feels duped because he really thought [Khloé] was done with [French]," a source told Hollywood Life. "He feels like Khloé's the one who's playing games with him now. They'd been talking for months and she never even told Lamar she was talking to French again."

With that being said, the former NBA player is apparently ready to sign the divorce papers, but only if the reality star is really interested.

"He's not hiding from Khloé. She could make it official today," the source said. "All she has to do is tell him, and he will make it happen. But that conversation hasn't happened."

Despite the previous reports claiming that Odom is avoiding the couple's divorce process, Kardashian is allegedly the one who is actually stalling.

"Khloé knows where he is. She just hasn't made a move or told him flat out what she wants to do," the source said. "Lamar wants her with him, but only if she wants to be. It's got to be mutual. If not, he's cool with letting her go for good."

Meanwhile, it seems like the "Keeping Up with the Kardashians" is still thinking of Odom, as she reportedly called him on his 35th birthday (Nov. 6).

"They always talk, and [Lamar's birthday] was no different. They didn't talk about her boyfriend," another source said. "It was a very brief 'Hello, happy birthday' conversation because she was on the run."

Kardashian also took to her Instagram account on the same day to post a cryptic message seemingly about her incomplete split from Odom, captioning it with a heart emoji:

A photo posted by Khloé (@khloekardashian) on Nov 11, 2014 at 6:46pm PST