I'm an extreme introvert that can go a very long time without human interaction but at a certain point, whether it be weeks or months, I get the urge to talk to someone, go out to eat with someone, do something with someone. This is a real bad place to be because you're fine being alone until you all of a sudden aren't and it feels 10x worse when you look around and see all the people smiling and laughing with friends.
This was where I was at years ago. I had to learn that relationships are work and investment. If you want company you need to recognize people will have different needs than you and cater to them, so that in the one time you do need a friend they will cater to you in turn.
