I have been with my wife for a long time, 12 years. We began trying to find a girl for us both about 2 years ago. About a year ago we had a young girl move in with us and it has been a disaster.
The new GF has tried to turn everything into a competition. Who gets laid first, and when, who controls the remote, where we eat at. It all started with the sex and went downhill from there. I realize that im not being as detailed as you were but I thought I would share and let you know that you are not alone in the fact that this is VERY COMPLICATED