selfless ???

Its a well known saying that True love is selfless. Now i wonder how the love can be selfless. No matters what, u will like to see a smile on the face of your love even if its at the cost of your own suffering. But isn't that smile is something from which u derive satisfaction for yourself. So is it really selfless love? Is altruism a reality or just a delusion? And isn't I  the prime concern of every individual even if unknowingly and indirectly or circuitously ..
The people who can accept it to everybody's face that they are selfish, are they really different in their measure of selfishness than those who don't even realize that they are selfish.Some people derive satisfaction in doing things for themselves only. And there are some others who would do anything for the people and then they would think about themselves. But isn't it their own satisfaction, their own conscience that really is driving them..
and both ways isn't I the priority? Am i sounding confused? isn't that the selflessness and selfishness are like the two roads mingled into each other? leave your opinions plz..........