User blog comment:Edfan12/Ben 10 Quiz/@comment-5785128-20111109203011/@comment-34326521-20111109230331

2. Did you SEE the show? Xylene was the first to appear, nothing more.

5. Ben didn't date any of those, he just had a crush on them or vice-versa.

7. Not confirmed and his name is Ultimos.

8. No. A crossover has nothing to do with being a spin-off or not.