Unconditional Anything

Is it really possible to do anything "Unconditionally"? Is it possible to do things without expecting anything from anyone? Is it fair? Is it healthy? Does it happen? (Let me guess what you guys are thinking - oh god!! She's back to her questioning self - but just bear with me - I'm good at this). Of late, I've been really busy with work and I have had really no time to "think"(In spite of having no time to think I come up with this? Ya - that's me), but still this question has been bothering me. Is it possible to work like crazy and not expect the least amount of recognition for your work? What if you have to put up with a job that sucks, that doesn't have a ounce of job satisfaction, a team that sucks even more, a boss who doesn't give a shit about you and still work day in and day out and not feel a thing? Is it possible to say "I love you" everyday without ever being reciprocated? You think you are with a person who doesn't care much for you, but your life revolves around this person, you wake up - he's the first thing on your mind(I'm a she, so it's gotta be a he - I'm not sexist), you go to sleep at night and he is the last thought on your mind, why does it matter if he thinks of you the same way?

We all have relationships in our lives, some that we have names for, some that we don't have names for, some that we take for granted, some that we get paid for, some we pay for some random acquaintances and some just people. I think we are all very greedy people we always need to be told and acknowledged... Deep down we are not sure what we are exactly, and we like to be told, how great we are or how stupid we are. So the assumption is that NO - there can't be anything that is unconditional - but what if there can? Have you ever tried doing that? Being all self satisfied and just doing what you want to do independent of everything and everyone. Can we do it? Let me know if you have any answers...
(I know heavy duty - but it's nice to think once in a while... :)..)