I've gone through this before with folks. But my latest post shows that either no one remembers it or read it when I put it out there last time.
For starters, my now ex, was with me for 4 years. I had unlimited dates. Unlimited sex. And could come over and see her whenever I wanted. The lease is in my name so I can boot her anytime. Which I did earlier this year with another SB I found out had a boyfriend.
So, why do it and risk? I have a fixed amount I pay every month and I control the apartment. I'm not sending her rent money at the beginning of the month hoping not to get burned. I know there will come a month that I will get burned. But, her ppm would have cost me far more. For two years I paid about 2500 a month in rent. Her ppm was 500. I averaged 6 dates, some full weekends, and several overnights. Average sex per date 3 times.
When? Minimum one year of consistent dates. 3-4 a month. I dangle the carrot at about 6 months if we are having a good time. Saying I'd like this to be more consistent. And to make it more consistent for you, this is something I've done in the past. Few girls actually go through with the consistency and stay ppm or fade. They don't really want to commit to that many dates. Others get snobby and want a super high end luxury apartment. I mention that will happen when we live together.
How come I went this way? The answer is simple. I have my monthly budget and I know how often I want to see someone/get laid. Girls know they have committed to seeing me more when I pay their rent. PPM they can flake and go out with friends. Rent, if it's been two weeks I tell them to come over Friday and pack for the entire weekend. If they give me shit for it, I remind them of our arrangement. I've had a few girls last a few months and decide to move out. It's fine, the apartment can turn over for another girl waiting in the wind.