FINALLY YOU NOTICE!!! Took long enough. It was apparent the first time she laid eyes on the jewel.
Still no explanation as to why Regina goes into that state nor why she suddenly came out of it and became her normal self. ┐(´ー｀)┌
But yay for Mana X Regina making up~
As for the princess, she was kidnapped, while frozen in ice, just as they were about to save her. And next episode a new precure will appear!