Let me give the background. I was going around 65 mph when this pickup truck merged on the freeway. It changed two lanes in one go at 45-50 mph, came in front of me and forced me to slow down. The driver then dared me using hand gesture to overtake him. He went to the left lane and drove exactly on my left for few miles to block me from changing lane. Finally I was able to change lane and get behind him. What you see in the clip happened afterwards.
1. no way you gave proper space to semi behind 2. you had no reason to honk at him to the extent or manor you did when he started to move over you should've just stayed in your lane and continued and maybe flashed your lights. 3. passing on the right makes you a when the left lane is open. you made a huge deal out of something minor that warrants maybe a flash of the lights instead you countered with excessive and continuous honking when he is doing the legal thing and moving to the right. unless there's a previous bit you don't want to show where you do something to upset this person, who by the way is giving safe distance to the semi behind and you apparently aren't using your blinker or its quiet as hell.