well I was running "Wife 2.1" until about 2002 after running "Girlfriend 7.0" but then I found the "Wife" is not just a programme but a complete operating system and actually when you install any "Wife" programme it completely removes the "Girlfriend" installation..............
I would suggest "Mistress 1.0" or more advanced versions if your operating system can handle it...........................
Just be careful , as you cannot run wife & Mistress programmes usccessfully for extended periods...............................