About 1.5 years old, has gotten very territorial in the past 2 weeks or so. If moved, or sometimes touched after getting comfortable, has started to snap and "chase away" me and the girlfriend. Hasn't bitten, even though she has had chances, mainly growling, and snapping, like what a dog would do to another when being approached with food. Any ideas what can be done to help curb this type of behaivor? My GF thinks it's because she is in heat, but in my mind thats still not acceptable, especially when this was never a problem in the past.

