I have been tossing around whether or not to get a puppy for a while now. I have been looking around and haven't really found much until the other day. I have emailed the breeder back and forth and she sounds really nice and I am hopefully available soon to make the drive to go see the pup that she has been talking about. (the breeder is in PA) The only thing I am unsure about is whether or not this is a right decision and if the new pup and my girl will get along. The pup she has is a female-11wks old. My girl is 2 yrs old. The thing I am worried about is that they are both females and I have heard that females tend to be more aggressive towards each other than males so it is always better to have 1 male and 1 female, is this true? Otherwise, this little girl sounds perfect. Anyone have any advice. My girl has gotten into a "fight" before with another spayed female but I don't know if it was her who caused it or the other dog and that is making me worry and I don't want it where all they will do is fight when the pup gets older. Am I correct? Please advise me!