From my observation. Black men who date white women and use 'n*gga' in their speech with her like they would a black woman, he lets that white woman say 'n*gga' more times than not. And if you check them on it, you're tripping. It's not just white women, his partner can be an Asian woman (Stephon Clark) or Latina (J Lo). For non Black women its the ultimate black pass. They love it if they can get a Black to let them say it and they know getting him sprung on the coochie and kinky sex is the key.
Conversely, white men know that if they are dating hard core swirlers, Black women who exclusively date White men, he knows she will sacrifice her self respect, her race, in order to be accepted by him. These white men start out with things such as playing the uncut version of Biggie's "Juicy" or any number o fSnoop Dogg's songs and sing the 'n*gga' parts of it to see how she reacts. Or they might say "I love Dave Chappelle' and play the Niggar family among the selections, see how she reacts, groom her and 100 percent guarantee he's eventually calling her his N*gger (hard -er) bitch in bed while smashing. He'll normalize it to her. White boys already know that Christelyn Karazin is completely sold out hence her bf was saying N bomb publicly no shame on a clubhouse chat.
Lastly, notice how he didn't even trip or flinch. They have normalized it to the point this white b*tch can't even code switch when other Blacks are around. He needs to be checked.