I think its just her personality
My Minnie is like this too ......shes 3yrs old & does not play with any toys,shes so boring.... wheras Scamp my 2 yr old loves to play & will play all day & night with every toy he can get ahold off
As a matter of fact Minnie gets mad @ Scamp as he makes noise with his squeaky toys .....Minnie likes everything quiet..
Scamp is lots more fun to be around