What's the point in making friends at uni?

Most adult friendships are temporary and short term, as soon as the thing that you have in common most disappears (job, university, living together, mutual friends etc) the friendship usually goes with it. It's got nothing to do with you, it happens to everyone.

I graduated last summer and left my long term job at the same time. I haven't spoken to the vast majority of my uni friends or work friends since then and I doubt I ever will again, however I do have a few lovely ones who are probably friends for life. My best friend lives 200 miles away and i've barely seen her in the last 2 years, but I still speak to her every week and we know every last detail of each others lives, because we've made the effort to keep in touch.

It's frustrating as hell, especially when everyone is off having fun and you're sat alone in your room, feeling like nobody cares about you. However it's just one of those things you'll have to accept. You make new friends and just keep the ones who matter, isn't it much better to have 2 close friends then 20 people who aren't that bothered?

To be honest I am at logger heads with my parents over this point currently, because I don't plan to drink or go out partying at all. I'll join one or two societies and do them once a week but the rest of the time I'm there for the course.

Why wont you go out and drink at all? That's what most people do for fun and to make friends, while still excelling in their course

Basically, you meet people in primary school and are the bestest of friends. Then you go to different secondary schools and meet new people and become friends with another lot. Then you go college and say "we'll keep in touch" but gradually never do. Then you go to uni and make friends and then barely see them after that because they originally live 300 miles away or whatever...and then you're all alone again until you meet some other people...

I just feel like what is the point anymore? I know some people are fortunate to stick with their pals throughout their life, no matter where they are in the world, but for some it's just so hard, even if you put effort into staying together. This has affected me to the point where I'm just going "meh" to people, not really bothering making a connection because soon it will inevitably be over I know it's more about the here and now, but I've just been reflecting lately and I find it sad (boo-hoo sad) that our time is brief, more brief than I thought, and in the end you end up alone (not necessarily lonely). It just makes it feel as if I'm making "friends" for my own selfish reasons, so that I can get through a certain amount of years without seeming like a complete loner.

Can anyone else relate? How have you managed to find friends that are life long? Every person/friend I meet I intend for it to last until I die, but maybe that's the wrong way to go about it? Maybe I'm not connecting enough for the "bond" to last? Does convenience help a lot, like living quite close? Thanks guys.