Hey you little so-lasts..

So I've been wondering.. just how little importance/value do you place on friendship groups/circles/organizations.. etc? What does being so-last truly look like/manifest in for you? I have a close friend who is sp/sx and it's almost terrifying to me how he genuinely doesn't need friendships outside of girls he dates.. He has zero interest in making same-sex friends because to him he doesn't see the point.. it's actually kind of repulsive to me because I don't relate to it at all.. We're really only good friends cause we used to date! LOL

I'm just wondering if this is also due to introversion and how an extraverted so-last would come across? How do you guys survive... hahaha