The friends attended the European premiere of Eddie the Eagle at the Odeon cinema in Leicester Square on Thursday night (17 March).
Posting a photo of the pair via Twitter, Dan said: "With my boy @jameslock__ at the Eddie the Eagle Premiere in London #JAN #original #f*ckpete #banter."
JAN - James and Dan - get it?!
Seeing the tweet, Lockie's BFF Pete Wicks said: "@DannyO @JamesLock__ Get your big f*cking mitts off my geezer!"
Joining in on the conversation, Danielle Armstrong joked that her ex Lockie only moved on because of Pete's new romance with Megan McKenna - aka Pegan - although they're both keen to have a different nickname!
Danielle tweeted: "@P_Wicks01 @DannyO @JamesLock__ This is what happens when u dump him for @Megan_Mckenna_ Pete, he moves on quick."
Megan's response? "@Daniarmstrong88 @P_Wicks01 @DannyO @JamesLock__ I'm more fun anyway."
But Lockie said: "Depends on what you mean by fun!?.......@Megan_Mckenna_ @Daniarmstrong88 @P_Wicks01 @DannyO."
Boys and their banter, eh?!
Dan and Lockie were the original bromance on TOWIE, but once Dan left the show last year, Pete took over as Lockie's BFF.
It was just earlier this week that Dan responded to a fan's tweet about Lockie and Pete's bromance, joking: "Took me a while to get my head around... But I'm just happy for them now."
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10 reasons why we want to be in TOWIE: