Tristan Thompson has a bone to pick with Khloé Kardashian’s ex-husband Lamar Odom!

After the former NBA player admitted on an episode of The Doctors that he wants his “wife” back, a source tells Life & Style that Tristan contacted the 37-year-old. “Tristan went ballistic,” the insider reveals. “He called up Lamar and told him he acted foolishly, and he warned him to stay away from Khloé or else.”

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But the 25-year-old is still worried that the reality star won’t be able to stay away from her troubled ex forever. “Deep down Tristan knows Khloé would never take back Lamar, but he is concerned that his girlfriend will fall for Lamar’s pity pleas and feel pressured to be there for him in case he goes off the rails again,” the insider shares.

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“Tristan doesn’t want any drama in his life,” the source adds. “Khloé is his woman, and there’s no way he’s going to allow anyone to get in the way of his relationship.”

A source recently told Hollywood Life that "Lam needs TT to know how madly in love he still is with Khloé and wants Tristan to understand that he and Khloé have unfinished business. Lam doesn’t want to disrespect what they have, but he thinks Tristan is just like James Harden and French Montana — a place holder in her life for when he returns."

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And a different insider told the site that the LA Lakers alum isn’t a fan of the 32-year-old’s new slimmed down figure. “Lamar is worried about Khloé. She’s killing herself with all this excess working out, that Lamar barely even recognizes her. He’s been checking her out on social media and she’s working out as if she’s training for the Olympics. Her thighs and legs look like straight bones. And her trademark Kardashian booty went from 100 to 0 real quick!"

For more Kardashian drama, pick up the latest issue of Life & Style, on newsstands now! And scroll through the gallery below for a look at Khloé and Tristan’s cutest pics on Instagram.