In case anyone didn't catch the meaning why the little bro keeps changing the preference, read this.
https://sakura.co/blog/what-is-japans-white-day-march-14th
The link is safe.
"Candies are the holy grail on this special day, especially hard candies. Because hard candy lasts longer than any other sweet on this list, receiving it as a gift means
requited love. Gourmet white chocolate is also a sign of mutual romantic feelings, especially if it costs three times more than the man’s Valentine’s Day gift."