Justin Theroux plays a small part in The Last Jedi and is briefly seen in the Canto Bight portion of the movie wearing brooch with a red flower while gambling in the casino. Maz Kanata sent Finn and Rose Tico to the upper crust planet to utilize the Master Codebreaker's service in infiltrating the Supremacy to stop the tracking of the Resistance through hypertracking. Maz speaks very highly of the Master Codebreaker saying, "He's a master codebreaker, an ace pilot, a poet with a blaster." She also eludes to romance while fighting during a "union dispute" and now Justin Theroux is confirming said romance.
Lupita Nyong'o's Maz Kanata gets pretty nostalgic when speaking of Justin Theroux's Master Codebreaker, rubbing her gun after C-3PO says that the man can do it all. While not a whole lot is known about the codebreaker character, Theroux has shed some new light on the nature of the Master Codebreaker's relationship with Maz Kanata. He had this to say when asked if he could confirm their relationship.
"I can definitely confirm it. That happened - she's a bobcat!"
The Master Codebreaker and Maz Kanata had a sexual relationship and people don't know how to feel about it. Apparently, the codebreaker has a thing for ancient women.
The relationship between Maz Kanata and the Master Codebreaker may become the topic of some pretty weird fan fiction in the upcoming future. Or maybe, Lucasfilm will throw it into official Star Wars canon and write their own books detailing the romance between the odd couple. It appears that the Master Codebreaker isn't the only one with some special skills that were not shown off in Rian Johnson's The Last Jedi.
While not much is known about the Master Codebreaker, except for his bedroom skills with ancient alien women, we also know that he was banned from playing any electronic games in the Canto Bight casino for obvious reasons. He can only play dice games and his original identity is a secret to all. For fun, he put all of his personal information on an encrypted node to show off his skills. Nobody has been able to crack the code at this time.
So there we have it, the Master Codebreaker and Maz Kanata had a deeper relationship than we thought. Rian Johnson chose to hint at the romance in The Last Jedi, but J.J. Abrams may decide to go for a deeper exploration of the odd relationship in the upcoming Star Wars 9. If all else fails, one can imagine that some fan fiction is already being written at this very moment, so there's that to look forward to. While we wait to see if anyone delves further into the romance between Master Codebreaker and Maz Kanata, you can check out the interview with Justin Theroux where he spilled all of the beans via Yahoo.