Yep -- he was still with the Rebellion after three years when he could've left to pay Jabba. He also risked his life going back to the command center to escort Leia to her ship.

In other words, he'd grown and matured enough to have fallen in love for the first time in his life, and to learn to think of people besides himself.

So poo-poo on your anti-Han 'tude, Harry!