Dangerous driver. Seems to be in a hurry, tailgating far too closely, completing multiple dangerous, undertaking manoeuvres on a dual carriageway before forcing their way back into the flow of traffic.
Would appear to be very inexperienced in common Road laws
Whilst they don't get up your arse when driving, they clearly don't understand what a 30mph speed limit is; speeding in a 30 and going drastically slow in a 60 🤷