This was very much my interpretation, she thinks Null is the best, therefor he is the best and all other females would think the same way, and it is only right for the best male to have the best females. On the same hand, she sees herself as the best female (strongest) and thus should be the Alpha Bitch as well.
Heh... just found this out. I know it is unintentional (well, probably is) and wolverine is just a title for Logan (and later her) due to their fierceness, but...
"Successful [wolverine] males will form lifetime relationships with two or three females, which they will visit occasionally, while other males are left without a mate ."
So... even more on brand for her.
I also found out that female wolverines are called Angelines.