Woes of work

The comparisons between work and other, less professional, aspects of life is sometimes daunting. Everyone knows that work is work - and its nothing personal of course. For example, I worked on a complete documentation set, including about 10 manuals (including generic ones that I did not need to update, but still), and even published it. Only to find out that the release had been canceled.
My boss thought that I'd be really hurt by this. I'm not - its only documentation. I got paid for my time, what do I care whether they used it or not? OK, there is also unpaid overtime to worry about, unnecessary stress, etc, etc, but that's all part of the game, and its past. She was more upset that I was it seems.
Other times, I am not so unaffected by work.
Relationships at work are like relationships anywhere else - there is competition, jealousy, the ebb and wane of friendships, and the sighs when your heart says to you, "That's just the way it is now. Get used to it." Recently we had a really big organization, and I've got a new boss, new team, and new product. Someone else is working on the products I worked on before, and my old boss is now working closely with someone else. And although there is nothing unsatisfactory about the new situation, I miss my old team. We worked closely together and spoke all the time - about work, but also about lots of other things, and we were good friends. Now if I see them in the hallway for long enough to say, "Hi, how are you", its a lot. Everybody is just as busy as they've always been, and its always hard to take the time and keep up a friendship. It feels a little bit like junior high, where last year I was in one class with one group of friends, and this year we've all been promoted to different levels of honors classes. Its hard to see your former friends being all chummy with new people, in the ways that they were once with you. Its hard to see someone else doing the things that I used to do, as I'm sure its hard for others to see me taking their place. But that's just it, that's the way it is, and we all try to convince ourselves that its for the best - professionally. But personally? I miss my friends, because even though its just documentation, work is so much more than just that.