A Question for All the Female Aspiring Economists

So I'm about to round off my vacation here in Montana and I had a repeat experience that has repeated itself too many times now to be coincidence so I need you lovely and sexy female economists out there to explain this to me;

Last night I go to one of the local bars out here in the Glacier National Park area. I run into a motley crew in the truest sense of fun loving 20 somethings who are spending their days contributing to GDP by running rafting tours, rangering, and other sorts of odd jobs. Everybody is having a good time, dancing and drinking at the local bar. One of the girls in the group fancies me and constantly strikes up conversations, asks me to dance and basically does all the leg work that the guy normally does.

Now, not to be mean or rude, but just to state the truth, I have no romantic or sexual interests in this girl because she is a little overweight. Call me a jerk, call me an ass, but that's just the way it is. I have no physical interest in this girl. That being said she is a nice girl and I genuinely enjoyed her company and very much enjoyed her conversation until....

The "Mother Hen" would intervene every time this young lady and I would embark on a conversation.

We would be in the middle of an engaging conversation and this other girl would come out of nowhere and pull her away from me.

We would be in the middle of a dance and sure enough the Mother Hen would yank her away in the middle of the dance floor.

And it angered me to the point that here I am, an innocent guy, with no plans or intentions with this girl and some nazi-goose-stepping, nanny-state totalitarian intervenes somehow thinking she's doing the Lord's work and "saving" this girl from my evil clutches when I had not clutching intent.

Now normally I would write this off as some crazy chick, but as I mentioned before, this is a repeat occurrence, and nor is it relegated to young 20 somethings.

A mere year ago I was hanging out with my good buddy Enrique. He's about 50 and we're with his buddy Ron who is also about 50. The establishment we were at was on a lake and a boat pulls up to dock and off walks a girl that Ron knows and works with. I forget her name, but she too was middle aged.

So Ron and this girl are in the middle of a conversation. And again, Ron has no plans or intentions with this girl. It was obvious through their conversation they were cordial, professional and co-workers.

But sure as scheit, another middle aged woman comes out of nowhere and "yanks" this girl away from Ron in the middle of their 100% innocent conversation.

Now I thought this was an ailment largely relegated to young teens/early 20's type women. But with this resurgence in instances of the "female yank" and at ages in excess of 30, it seems to me to be a mental illness or an ailment that transcends all ages and something I'm going to run into again and therefore will need to know how to handle in the future.

So my question you sexy intelligent economists of the female persuasion is this;

Who the hell are these chicks?

And WTF is their damage?