I suspect I'm not the only one, am I? XD...... Anyways, you know you're obsessed with Bellatrix when....
Credit: Me Myself and I

1. You throw away all of your hairbrushes.

2. You wear at least some black every day.

3. You rip your clothes on purpose.

4. You call people you don't like "filthy mudbloods".

5. You yell "CRUCIO!" at people when you get mad.

6. You carry knives on your person

7. Your desktop background and screensaver are of Bellatrix.

8. Whenever you're typing a word that starts with a "B" or an "L", you accidentally type out a Bellatrix or a Lestrange instead.

9. You think her birthday should be declared a national holiday.

10. Whenever you mention her, your friends roll their eyes and shake their heads.

11. You call your favorite teacher Voldemort.

12. You constantly discuss your theories as to why Bellatrix Lestrange isn't really dead.

13. Whenever someone brings up other Harry Potter characters, you get confused and ask "Wait, who are they again and are you sure they were in that movie Bellatrix Lestrange and the Order of the Phoenix/Bellatrix Lestrange and the Half-Blood Prince/Bellatrix Lestrange and the Deathly Hallows?"

14. You faint in shock whenever people ask "Who's Bellatrix Lestrange?".

15. You write excessive amounts of fanmail to Bellatrix, then try to Crucio the postman when he tells you he can't deliver it.

16. You jump every time you hear the word "strange" in case someone was talking about Bellatrix.

17. Your motto is "Sanity is Overrated".

18. You name or plan to name one of your kids Bellatrix.

19. You suddenly think that it would be cool to go to jail.

20. You get in trouble for carving words onto other peoples arms when you get mad.

21. You lock a golden cup into your safety deposit box and tell everyone you've got something top secret in your vault.

22. You accidentally call your best friend Narcissa all the time.

23. You have so many Bellatrix pictures and posters in your room that you can't even see the walls anymore.

24. Whenever someone says the word "serious", you jump and exclaim that you already killed Sirius.

25. You call people with red hair blood traitors, no matter who they are.