She'd stayed because the monks "forgot" to tell her that LHC refused their treatment and left. That's why she was mad with their deliberate attempt to keep her in the temple when they did not keep their promise to heal LHC. She left the temple to look for him where she met her father finally.
The baddies spread the news that RYY was still in the temple to cause bad blood. That's why the hill clan together with LHC went to the temple to save RYY.
Originally Posted by haibinglover