Expectations and assumptions

We've all heard people talk about this, experience this and yet do this- expect. We've heard people say that expectations hurt. It is actually not the expectations that hurt, but the fact that they might not come true, or it not coming true, that hurts. So what if we expect something, and it doesn't happen, and yet we are alright with it? Then expectations won't hurt right? So in the end its how we deal with things or react to things that hurts. Not the things themselves.
Going a bit personal, recently, i'd decided that i'm not going to expect anything from a certain person in my life. There was a lot of hurt and negativity which led me to do certain things, but i ended up realising that inspite of all that, the basis had not changed even a bit. This realisation was what made me decide. To just keep doing what my heart tells me. To not question it at all and just keep following it. All this while not expecting anything in return. Though its a very hard task, and we always want to keep following our heart without questioning it, or the other person; reminding the "questioning-and-expecting-self" about not expecting, helps a lot! When you do this, even the smallest act or reaction from the other person feels like a huge bonus..
So thats that about expectations..
A very close friend of mine (C.Jo) an engineer loves to critisize economics. He says why do we have to assume so many things? What the point of proving things on the basis of assumptions? and so on and so forth.. But then don't we assume most of the things in life? Like you are on an Indian road, there is a round about, and you only look on the right side n then the left of the road, BUT what if someone is coming from the right side while you are looking on the left?!? Don't we assume that no one will do something like that? Rule or no rules, we assume this, and we expect people to follow it! might be a bit weird example, but the point it we keep assuming a lot of things in our daily lives as well.
So when things are not under your control, specially in case of feelings, why not assume for the better than the worst? This combined with no expectation, will work wonders in your favor. Of course it will demand a lot of patience. i mean truck loads of patience(so wish patience could come in small packets, like a drug, i would inject it daily!).