Not the GP, but once I gave flowers to a new Chinese girlfriend in college. She kindly explained how the meaning differed between cultures.

Mentioning races is not racism.

not so much about mentioning race/cultural difference. the new X girlfriend part I guess.

Yes, why does it sound off to you? There's a real opportunity here for you to learn something important about yourself.

I think the original post had no malintent, and you just might be trying too hard.

He meant "a girlfriend you only recently got together with". You read it as "replacing your girlfriend with another".

relatable descriptions of people and things are now problematic