After Stephen got shot by Diamond Dog's men right in front of his Brother Bloom he reveals to him that it was only fake blood and he pulled of the ultimate con. He says farewell to Bloom, that he shouldn't ever return to St. Petersburg and cannot see him for some time. But already shortly after, when he is driving in the car with Penelope, Bloom realizes that the blood was indeed real blood and that his brother is in fact dead.
Yet when he sits in the grass crying over his brother, he repeats what Stephen once said:
The perfect con is one where everyone involved gets just the thing they wanted.
seeming appeased and walking into a future with Penelope.
The way he says that and seeing that Penelope is most probably the thing Bloom wanted and vice-versa seems to imply that Stephen also got what he wanted (and thus achieved the perfect con), yet he died. So what did Bloom want to say with that quote? Does this mean that Stephen really wanted to die? But why?