Emo moment ... but I've found all of this to be true (Speaking as only an Asperger can)

Friendship is a lot like falling in love and 'romantic' (HA FUCKING HA)relationships. For a start, it mostly happens when you least expect - and sometimes least want - it to happen.

Your body goes through a ridiculous mishmash of chemical reactions and you start feeling very intense emotions about the person. You're scared of what might happen next. You never know for sure if you really ARE in a frienship (Especially if the other person is a - *shudders* neurotypical. (God, I hate that term! Why not just call then Joes and be done with it? Much simpler, less geeky-sounding and it puts them in their place)

Sometimes it turns out happy after a year and continues happily for many years after that fine, and you both accept the occasional minor hiccups.

But most of the time, it either starts off OK and then fizzles out because you stop talking to each other, or it starts OK and then you find out that the person was never even worth being friends with in the first place, for whatever reason.
OR.... you know they're a nice person and do have some good qualities, but they're difficult to be friends with (Mainly due to the fact that you are seen as more important to them than they are to you).

Sometimes people who come under any - or all - of the descriptions, usually except the first one - are pretty much impossible to shake off, but you can gradually remove yourself more and more from them given time.
On other occasions, it feels like you're holding onto the cracks of the foundations, but you can't let go*

Very rarely, you make the first move - you never know for sure whether it's even worth making a move in case you end up bruised all over again, just like the previous 50 times you made a move.... and yet you don't quite give up even though it's bloody obvious you should. WHY?

What hurts is when the ones you thought you could trust with your life have totally changed and given you bruises, although they may deny it and/or not actually know they've done so.

*Maybe it was a bit corny using Kate Nash lyrics. Sorry.

Can't think of any more atm..... probably just as well. Urgh!