Hi Georgina, Thank you for posting this. It's clear why Cat reacts as she does, but it's presented in a 'telly' way. As a result, for me, the text reads at times like a pamphlet, as though you wanted to demonstrate something.
I assume that it must be important that the man be black for some reason connected with who Cat is, but I don't know why. I recognise from my own experience that's it difficult to account for all this in an excerpt.
Unfortunately, I have little time, so I've taken the liberty of inserting comments directly in the ms. Normally, I wouldn't do this without asking you first, and I hope that you won't mind.