What about a different crate... start on a level playing feild that way she isn't possessive of it from the start. Maybe try playing with her in it... or going and giving her treats while she's in it and giving her love and stuff in the crate... Now I wouldn't treat her for being aggressive obviously, but if you time the treats with the playing and when she's good, it might work...
I bought Harley a really large steel wired crate, it's huge and it's his house. (I used the divider when potty training, but now he just has a huge house). If potty training is not an issue you could try getting a larger crate that is still smaller than the pen. It would also make it easier to play with her in it to try and deal with the agression. |