Driver deliberately swerved towards me

I had a road rage encounter and am quite shook up.

A driver got stuck in the lane beside me in traffic but mine was clear. I was able to move over to the other lane after the queue as I’m generally a slow driver. He took offence to this for some reason and I don’t believe I was close at all (he did not flash or beep to indicate I had moved over too close). He properly took off at a crazy speed to pass me and then swerved right in front of me causing me to emergency stop. After a minute we ended up next to each other at the next lights and he admitted his actions saying that it was “a touch of your own medicine”. I’m thinking wtf and then he said want to get out the cars and settle it like men!

How serious is this? Do I just suck it up or is this something that should be reported? I have his number plate but not sure if it’s something I should mention here.

All I can think is that he totally misjudged things and did not realise how close he was. Still no excuse for what he did though and it could have easily caused a serious accident considering the proximity to a path and there could easily have been someone behind me.

Any thoughts or advice? I want to do the right thing. The first thing I did do at least was confront him at the lights as I feel that people need to be at least called out on actions like this. Not something I’ve done lightly as it’s well out of my comfort zone.

I may be over reacting to which you can say so. In that case this has been my rant.