This is a really interesting topic.
I'm a male who has dated many HPD women and would say that they are very similar in the way in which they seem to interact with other women.
A striking similarity is that they normally have one long term close female friend (who is no competition for them either looks/personality) and will have frequent temporary friendships with other women. Much like with men, these temporary friendships seem to be intense then suddenly nothing with future hoovering type contact, then nothing again. The fan club consists of ever changing members both male and female.
What is really fascinating though is when 2 extreme HPD women meet. They almost cannot see each other, their interaction is very strange. Very similar to one another but as if they are unable to properly communicate and are confused. If you ever see this you will know exactly what I mean.