You could say that, well, Zuko was not a thinker.
He would watch the sunrise and not be awed by its beauty, or see the ocean and be filled with any emotion.
He did not plan ahead, or 'look towards the future'.
The boy, did however, enjoyed shooting first, and asking questions later. It may be written, that he lived on impulse.
Like the time he ran his ship into an iceberg, or who could forget the night almost killed a fire nation guard for fear he was being attacked.
But the one thing zuko did have the tendency to think about, was the opposite sex.
His only thought however, was to 'Stay Away'.
In Fact, he thought about the opposite sex, and how to avoid it so much, you could say he was a bit obsessed. ( We all know Zuko has obsessive tendencies)
So when he began to devise the plan, to kidnap the Avatar's female companion, after stumbling onto her neckless so the avatar would fall into his hands, That this girl was all he could think about.
How he hated her, hated the color blue and the water and the shimmering strands of her hair.
Hated the way she smiled and everything around her seemed to light up. Hated the way she would heal helpless animals, or hated the way she looped her hair with those annoying beads that made the color of her eyes stand out.
But most of all, Zuko hated how much he thought about hating her.
And when the time came, He absolutely hated when he grabbed her trembling body to kidnap her, and ended up just kissing her instead.
Zuko was never much of a thinker.
Author Rambles
God Im in such an Avatar frenzy right now! If I dont see some REAL zutara action soon, Ill just animate the show myself! Hmph!