If you are a white person in a racialized person’s life, especially as a partner or close friend, you should go out of your way to ask regularly “hey is there anything you have been holding on to that I did?” and critically both fix it and NOT DO ANYTHING TO PUNISH THEM FOR TELLING YOU.
As a white person raised in a white supremacist society, you’re gonna fuck up sometimes. That’s just a fact. But racialized people often aren’t able/comfortable speaking up when y’all do some shit because of the power imbalance/not feeling up to educating when you may be resistant/don’t think the “fight” will be Worth It.
Show initiative without making it A Struggle or playing the white guilt card. Show you actually care about them, their struggles, and the way you interact with them BEFORE they have to have a bigger Conversation with you, beyond when they need to yell about someone else being racist.
And for fucks sake if they’re making/showing you something from their culture fucking act like you realize the importance of that, that they’re showing you shows they grew up with or making you food they made with their families, that they’re letting you in and trusting you more than other whites in their life.