The video footage which is shown from the the perspective of the motorcyclist, shows the biker accelerating from a traffic junction and almost getting cut off by a red Mazda CX-5:

This exchange between the motorists happened at the junction between Sumang Lane and Sumang Crescent. The motorcyclist was riding straight, albeit accelerating pretty quickly, when the Mazda CX-5 driver attempted to overtake him from the right. 

Evidently, the CX-5 driver failed to form up correctly at the junction, and drove against road directions when he went straight ahead instead of turning right, as shown below:

Source: Google Maps

The exchange between them continued as they drove into the same multi-story carpark, even stopping for a moment to exchange profanities and showing the finger at each other:

Here's a short transcript of their 5-sec verbal exchange:

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Driver: (gesturing and talking with a muffled voice)

Motorcyclist: F*** you, don't know how to keep to your lane is it! F*** you!

Driver: F*** you!

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Netizens made some comments on Youtube, with mentions that this is just a small issue, and that both of them had 'too much ego':