Women have no right to be jealous.

It depends on whether girls have feelings for boys. If the girl doesn't reply, she will either feel embarrassed or have no feelings for the man. She thinks that boy makes her feel oppressed, because girls make boys jealous, and maybe he is a little close to other boys. If he doesn't show his love for boys, of course, he has the choice to get along with other boys with all his strength, so it's best for boys not to be so straightforward, otherwise girls will feel scared or rejected.