A Forbidden Love (like the Forrest. get it hp fans.)

Two kingdoms have had a rivalry for the past five generations. Fire and Ice. Every kingdoms' (including the sea,and forest kingdom) royal family gets a gift. Luna, the Ice princess's gift is the power of the Moon. She soon goes to a school for all the
royal kids with her arrogant annoying brother. She meets the fire princess *sparkle sparkle noise* . Being raised in a family being straight is a priority,why does she feel this way?