I bumped into another car

[Hogwarts2021]

Looking for some advice! Today I bumped into another car, I was behind someone coming out of a car park when they put there breaks on, i braked too, and ended up bumping there car, before I got out car the driver came out his car charging towards me calling me a stupid bitch! When I got out car to inspect any damage there was not a mark on his or mines! After that I decided to drive home as I felt intimidated and scared plus there was no damage to his car!im so anxious and scared on what the outcome will be plz help

As LimitUp has already said, get a dashcam - ideally one that has front & rear cameras
It's good protection from the "crash for cash" scammers.

I was rear ended at a roundabout a few months ago. It looked like no damage initially, but I insisted on detailed being swapped. When I got home, I realised the bumper was jammed up so far I couldn’t get the boot open. When it was checked by the insurance company, it turned out there was a twist to the underside also. So, 10 days of car hire for me, new parts, and some respraying, must have added up. Just because there’s no visible damage, doesn’t mean it’s ok.
However, he shouldn’t have threatened/intimidated you, and others have given you good advice on that. Just wanted to let you know not all is immediately as it seems.
Take care, OP.