Matt Barnes isn't going to be very happy.

The Grizzlies role player has been livid since finding out his former teammate and ex-Knicks coach Derek Fisher has been seeing his ex-wife, "Basketball Wives: L.A." star Gloria Govan.

The ex-teammates engaged in a physical altercation back in October when Barnes first found out, but now, Fisher isn't trying to hide anything.

Just a month after Govan deleted a photo showing her and Fisher in a group shot while getting ready for a flight to go away for her 30th birthday in order to keep things on the down low, they are surely flaunting their relationship. Fisher and Govan were seen publicly kissing and enjoying piggy back rides in Los Angeles this week, according to the New York Post.

Fisher was fired by the Knicks on Feb. 8, but he has remained in the public eye thanks to his high-profile relationship with Govan and rampant feud with her estranged husband. The former coach even penned an essay for The Cauldron, in which he defended Govan against critics.

"Story after story was published that portrayed her as a piece of property, instead of the strong, independent woman and mother she is; someone who is capable of making her own decisions," Fisher wrote. "This is a human being we are talking about, not some pawn in a game."

While Fisher and Govan have tried to live happily ever after, their romantic escapades haven't sat well with Barnes, who has openly said he wants another physical altercation with Fisher.

"I know I got to keep my mouth shut because then he'll run and tell," Barnes said about Fisher in January during the lead up to a Grizzlies-Knicks game via The New York Daily News prior to Fisher's firing. "So we're focused on playing that team [the Knicks]. And when I'm retired, him and I will cross paths again."

Barnes has a sordid and tumultuous past with Govan as he was arrested on domestic disturbance charges back in 2010.

Fisher and Govan have tried to move on together, but Barnes likely won't be happy about the latest public display.

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