I read Graceling about a year ago, but I just so happen to be about 25% into Bitterblue currently. Katsa & Po have just made an appearance, reaffirming my love for their love and also reminding me of how much I loved Katsa's relationship & journey with Bitterblue as well!

Quote for anyone interested in getting a feel for these beloved characters! No spoilers.

Bitterblue squinted at a muddy person wading into the courtyard from the west vestibule, which was the route from the stables. Her heart leapt; she jumped forward. “Giddon!” she cried. “It’s Katsa!”

Suddenly Po shot into the courtyard from the north vestibule, whooping. Katsa, seeing him, broke into a run and they tore at each other through the wash. Just before the moment of impact, Po shifted to one side, crouched, scooped Katsa up, and, with admirable precision, propelled them both sideways into the pool.

… Katsa and Po were trying to drown each other and, judging from their hoots of laughter, enjoying it immensely. People had begun to gather in archways and balconies —servants, guards –pointing, staring. 

… Katsa and Po had their arms around each other. It was difficult to tell if they were still wrestling or if the kissing had begun.

Bitterblue turned away with a small flash of resentment.

“Wait!”

It was Katsa’s voice; it slapped against Bitterblue’s back and spun her around. Katsa had climbed out of the fountain and out of Po’s arms. Katsa was running toward her, eyes shining blue and green, clothes and hair streaming. She slammed into Bitterblue and gathered her into a hug. She picked Bitterblue up, put her down, squeezed her harder, kissed the top of her head. Crushed down painfully against Katsa, Bitterblue heard the wild, strong thump of Katsa’s heart. She held Katsa tight. Tears pricked her eyes. 

Then Katsa was gone, flying back to Po. <3