A lot of people and activity is something I've been told I handle well. Yet, I can tell you from a personal perspective my tolerance for it is very limited. I may DEAL with it, that doesn't mean I like it. I've been told "sure you do, you get very animated and talkative". Yet, the thing is I am always talkative if there is someone to talk to. That doesn't mean that I am not also getting increasingly uncomfortable. I simply saunter on. Though I do often view running back to my room, my cave, my real home as salvation. I'll find myself wanting to retreat there, but trying to stay engaged.
If I encountered YOU for example in person I have zero doubt that I could speak to you for hours, days, weeks, etc. That doesn't mean that I wouldn't soon start hearing the siren song beckoning me to retreat to my room...
:)
I know what you mean! I can talk fine as long as there's something substantive to talk about and someone intelligent to talk to... But I too soon long for the solitude of my cave.