Y is she blushing???
I belive she was testing how Violet would react to someone overstepping, and that Violets reaction aka the two slaps and statement proved to her that Violet is the person she would follow. Violet proved she had the insight to disaplin even her most beloved sister if needed, making her a vise future leader.
If she had spared her sister for the exuses it would mean Violet is open to being manipulated by those she loves, making her a failure / weak future head whom her sister would need to dispose off.
Y does it look like he still wanna trap the ML in some island
Was thinking the same thing like. That smile at the last panel is not innocent at all. He is trying to trap you on a island Σ(っ°Д °;)っ
He has turn into the dark side 4 sure after absorbing dat orb