How to deal with racism?

Hers the background information

I'm black British -Jamaican heritage, straight, single 27

He's Italian from Sicily, gay, in a relationship, 23.

The group I formed was multi ethnicity, I was inclusive, I was helpful to them all. Offered support.

He laughed over me when I laughed.
Acted as if he couldn't understand a single word I was saying.
Suggested dressing up as me for Halloween.
Tried a few threatening tactics, invading my personal space.
Asked whether I could & how often I washed my hair.
Singled me out for my style, jewellery etc.
There's more but can't be asked to write it all