Hi cut shot,
My cue specifics are nothing to be kept secret. I play with a Barnhart Cue made by Cory Barnhart. It weighs 18.4 oz. with a 12.6 shaft diameter. I use a pro taper. I have a shorter ferrule (similar to a predator ferrule) with a Moori Slow tip (something new I am trying out, I used to use a Moori Medium). My cue has a wood to wood flat faced joint with a Radial pin. It has a little bit of a softer hit than the cue I was using before (Cognoscenti). It has a white phenolic joint and a irish linen wrap.
When I am looking for a cue to use, solid hit is the first thing that comes to mind. I also have to say that if you are looking for a new cue be sure to play with it for a little while. Everyone seems to love a new cue when they first pick it up and then maybe not like it a week later after they bought it. Remember, everyone likes something new. Be sure you still like it when the newness wears off.
As for your girlfriend thinking women can tell things about a cue. I'm not sure if that statement is correct or not. Everyone has their own personal feelings about cues.
If you need any more info feel free to ask.
Take care,
Sarah