Why does Sagittarius always like to say to his face that the boy he likes is a brother?

Sagittarius is a fire sign, influenced by Jupiter, so it becomes a double plus sign. Sagittarius girls are always careless and look like boys in front of everyone. Girls with this personality will always be sought after by boys, and once a Sagittarius woman has a boy she likes, and this person has a good relationship with him, she will directly treat this boy as a brother. The purpose is to get closer to him. Shooters who want to know more about that boy often regard the boy they like as their bosom friends. But she dare not say that she likes him, so she can only say that he is her brother in front of others. Only when the boy tells him himself, will she reveal her heart.