Golly Gosh!
The motorist appears ill-mannered, ignorant of the HC and a generally poor road user to swing across when it meant impeding the oncoming traffic (the headcammer).
I live in a market town with narrow, closely-parked roads and one gets this sort of thing a lot - although usually rather less blatantly and oafishly than in the clip. I really do get the impression she thinks she's in the right. I cannot imagine how. Her driving is vergeing on the bullying.
However... I fear we may have here another headcammer who is delighting in having found 'postable' footage. It is a fairly bland, everyday piece of motoring duncery that he just has to elevate to top billing in his own masturbatory theatre of street heroism.
She is undoubtedly a colossal turnip, is utterly in the wrong and ought to have been listening when manners and good driving were being taught.
He gives the impression of being just a little too excited about recording a confrontation with somebody who's in the wrong and looks like a man who wants to have the last three hundred words. Or more.
Neither party comes out of it looking clever. But she is wrong. He is just a bit of a tool.
As an aside, I re-watched the excellent Wind that Shakes the Barley a few nights ago. It is as harrowing as it is beautifully framed and filmed. In the back of my mind, I find the echoing question "Did I shoot Chris Reilly in the heart so a cock with a headcam and a paranoid loon with no roadsense could shout at each other about rights of way?" I may be cheapening the heroic struggles leading up to the civil war with that comment... But really!