The arrow can be understood as male genitalia. You dream that someone shoots an arrow, which symbolizes the sexual behavior of others (men), or contacts with women, such as love and marriage, but others don't shoot, which means that you think that person has not succeeded in this matter, so you pick up an arrow and continue shooting, so you want to continue this kind of communication between men and women.
Conclusion: You have a secret crush on the opposite sex, which is deep in your heart. She's taken, and you know it. However, you subconsciously long for the opportunity to get close to her, and even hope that the men around her are impotent, so that you can get a certain psychological balance.