Interracial relationship... Do you need to discuss potential racial issues that may come up?

I'm a black carribean woman dating a mixed race (white English/ black Caribbean man). This following weekend he met my sisters friends for the first time at a birthday party. Anyways one of my sisters closest friends came and spoke to us ;very shortly into the conversation after I mentioned my partner cooking dinner on new years day for me and his family. She asked him what cuisine it was. Now I understood what she was trying to figure out. But I couldn't possibly understand why, since we are all black.

Anyways he handled it well and I didn't say anything.

Later on that night I mentioned it to my mum. And she was just as annoyed as I was.

I asked my boyfriend if he noticed to which he said yes and he said it didn't bother him.

But it bothers me. I have fallen out with people due to this type of behaviour, and at one stage I even had a mixed race friend tell me that dating anything other than black was not good!

I'm not trying to stirr trouble here with us, infact I have his back, but I feel like he kinda tries to just brush things under the rug.

No ones saying he's got to be aggressive but I feel like maybe, I'm finding it more insulting because I don't see why people can't be happy that we're happy...