> I have often felt like the nectar for a hungry extravert to feed on, and when they are done with me, it turns out they never actually cared about ~me~; they just needed to feed on the social interaction with me to gain energy for themselves. I was just a means to an end for them.

This is a striking metaphor! Although I do try to gauge willingness to talk *before* actually engaging in a conversation I will keep your comparison in mind. I don't want to feed on anybody's nectar, so to speak. :-)