The phrase "announcing is not necessarily the favorite, but not announcing is necessarily the favorite" is somewhat ambiguous and contradictory, but we can try to understand this sentence from the different perspectives of boys and girls.
Boys' perspective: Announcing doesn't have to be the favorite: Guys may think that even if they publicly declare their relationship with someone, it doesn't mean that that person is necessarily their favorite. This may be due to external pressures, societal expectations, or other reasons to make the relationship public, rather than based solely on emotion.
But not revealing it must be the favorite: Guys may be inclined not to disclose the person they really love, perhaps to protect the relationship, or because they believe that true love doesn't need to be made public to be verified.
Girl's Perspective: Announcing is not necessarily the favorite: Girls may hold a similar view, believing that a boy's publicly announced relationship is not necessarily representative of their true affection. This may be because of other motivations or societal expectations of the boys.
But not announcing it must be the favorite: a girl might interpret it as if the guy didn't open up about their relationship, it might be because they really care and want to protect the relationship. Girls may be more inclined to think that this undisclosed relationship has a deeper emotional basis.
However, this quote can also be seen as an understanding of the complexities of love and openness, which may be interpreted differently by different people. Overall, this quote may mean that love isn't just about public announcements, but about deep emotional connection and protection. But remember, every person and every relationship is unique, and there are no absolute rules that define what constitutes a "favorite."