There are some of us who in our bid to be considerate to the one we love, end up being selfish to the other people around; it's called being self-absorbed. And there's that other kind of selfishness that stems from being stubborn and strong-willed. People like that let their pride get in the way, making them selfish and a pain in the ass, because by their unwillingess to do things, others have to bend backwards to accomodate them. There's a third kind of person who displays the behavior of the second category but has the added quality of being self-delusional. Why do I say that? Because the person is able to fool themselves into thinking they are considerate but let's face facts: If I loved you enough, I would give you the answer you want to hear, and not the real answer.
I'm sad to say that I know someone with all of the above qualities. Not that said person is openly selfish but let's just say, I've had ample time to observe the person and this person is not as 'nice' or 'sweet' or 'wonderful' as many seem to think. It's the little things that all add up and all this person has shown me is a side that is ugly - spoilt, self-centered, annoying and inconsiderate.
I have one thing to say to this person: Grow up. The world does not revolve around you. Learn to compromise. There are just some things in life where you have to give in. You're not at the top of the hierarchy; learn to deal. You are nothing more than a selfish, spoilt brat.