Yes, I remembered how the story went with her character arc.
She was madly in love with Edmunston. Cliona was an archetypical princess other than the fact that she had a crossbow before certain other heroines made it cool to do archery.
Cliona pretended to be under attack and wanted those so-called monsters destroyed.
Once she heard the Dragon Witch’s dying words, she tears up.
When they go back to Valor’s kingdom, she hears the words from him.
She saw the blood.
She saw the skeletons.
She saw him an inevitable corpse.
Her last dialogue in the book was “Looks like I’ll be a princess forever.” Before wandering aimlessly.