Well here is what I think.

Men and women are basiclly at war with one another...
So that sets the tone for the rest of all relationships...

Generally People look for somthing they want,
and if you don't have what they think they want
Then they don't waste their time or effort.

... Generally people behave in a way that is not genuine in order to attract others.
... eh... most people have to "act" a certian way to be around others in a freindly way.
So for them it is all a facade, thus they don't "waste their time" (becuase it's work) unless their is somthing they can "get" out of it.

I mean I know it sounds mean...
but why not face it?

I have some friends that don't talk to me mostly becuase they don't give a shit about ME.
They're too busy trying to appeal to somone who has what they want,
Be it a ideological agreement, a material luxery, or a sexual trade, (as appaling as that is)
I apparently don' t have that thing they want or don't fit some expecation.

This kind of friendship can be all that many people ever experience.
Hence, your idea that somone can be with a friend for 50 years and still not know them.

These sorts of people only extract things and trade with them.

I sympathize with your post
Very much a real thing.
Not unusual anymore, I don't think it matters who you are, you will have this experience.
I've personally had it and have it... everywhere I go. It makes you feel worthless

It's like one begins to feel like the garbage our civilization throwout to the landfills.
Indeed It is almost the same thing.
People have become resources, and individuals have to sell themselves like companies have to sell cars, or shoes.

I think most people live in their head and not in the felt moment of experience. We are totally alienated from reality and live entirely in an abstract cultural customery contstruct, of reality.

I think me and all people are basiclly good, but it's just a quality of the historical moment which has caused this great existential suffering and anguish.
It's not OUR fault, but it is OUR problem, and WE actually have to fix it, we are the ring bearers...
If we don't find a way no one ever will...

Personally, my needs don't fit in with mainstream expectations. I'm more like a man (a gay man) whose livelihood is based around the work I do and being a productive member of society. All I've wanted from a partner is to love and appreciate me for who I am and the work I do. Unfortunately, as a woman I'm judged more by age, it seems, and I've found it harder to meet anyone as I've gotten older. I didn't have a problem with loneliness until my 30s, when suddenly it seemed that most of my peers wanted to get married and have kids. I never wanted kids, and the pool of available men just dwindled. Tried the dating thing but never met anyone who "clicked" with me. Out of the blue, I met that rare person who was everything I'd ever wanted in a man -- except he wasn't "into me". He just wanted to be "friends". So here I am typing my woes to strangers on a message board.

remember that being alone and being lonely are 2 different feelings..alone is on a desert island by yourself.. i can be lonely in a room full of people .. i figured out what lonely is though at least for me.. im missing little bits and pieces of me.. they were taken away by people who have gone away or hurt me over the years.. and sometimes you find people who can fill in some of those little spaces.. at least for a little while.. but then you get let down again and there are more spaces.. but then when you like being with yourself you can fill in some of the spaces yourself.. does that make any sense to anyone