1. Do you know that she knows about your relationship with him?
2. Does this girl glance at your boyfriend a lot?
3. Does your boyfriend talk about her?
4. Does she ever look at you sharply?
5. Has she ever had a past with him?
6. So, does she appear angry when you two are together?
7. Is she the jealous type?
8. Does she try to show off in front of your boyfriend or flirt with him?
9. What does your gut say?
10. Finally, does she currently have a boyfriend?
