While Scarlet was perfectly okay ignoring Amara and simply letting her be until the rightful moment when the woman was evicted from the blue star, the other wasn't. She was determined to get into the castle and see Adler, one way or another.
When the guard informed her that Amara was back, not even one minute later with a document granting her permission to the castle to investigate a supposed crime, she rotated her head from side to side, with a deeply irritated look on her face and a storm of fury in her rising in her chest.
Why couldn't idiots keep still and stay far away from her? Was love and affection forcefully given?
"I am coming, keep her there." she told the guard.