Good video...I'm more introvert than extrovert, and feel the same way on most if not all of your points. To me, riding isn't about going stupid fast and taking risks...it's a way to unwind, relax, and be alone in my thoughts, while being on 2 wheels (just me, machine, and road). I've also always loved vehicles, so while doing something like fishing would drive me crazy, riding is perfect.
Also, riding has helped me expand my social circle far more than if I never got a bike. Group ride points are bang on...typically small group, and you both get to spend time alone but with others, but also have fun and joke around before, after, and at stops during a ride. To me this is much better than spending a long time feeling like you always need to be 'on' and always need to be thinking of something else to make conversation about after you run out of things to say.
One other point too -- Although I'll complain about having to do work on the bike or car, there is a certain zen and simplicity about it. In my job I have to deal with people day in and out, plus work with computers (servers, software, some programming, etc)...what is nice about the bike is that it is mechanical, and turn a bolt one way it gets loose and turn it the other and it gets tighter. After dealing with things all week that sometimes make little to no sense at all, it is nice to do something like an oil change, chain work, etc where it is all simple manual work that needs to be done.