Lady Nightfrozen does not like flowers. When this guy gave her flowers, she was pissed. She took them and crushed them using her high heels. She did it so that she could teach him a lesson about her and flowers. She did not want him to ever make that mistake again. There were better things to buy for her than flowers and today was the day for him to know that.
So you really chose these flowers for your mistress Lady Nivia? Well, she things they're totally ugly and wants to crush them after her riding lesson. Her large horse walks right in the direction of your flowers - and over them! But Lady Nivia doesn't think that they're destroyed enough so she gets off her horse and stomps the remains under her dirty riding boots.