ROI as a frame
Return on investment is a finance frame that lifts surprisingly well into dating. The investment side has three currencies: money, time and emotional bandwidth. The return side has more: outcomes in the CPN sense, but also growth, fun and quality of life.
The frame isn't perfect. It works best while you're dating around, where investments are discrete and outcomes are countable. It works less well inside an established relationship, where both blur into shared life.
The three measurable currencies
Money: log every dating-related dollar. The total is your spend.
Time: log the hours, including travel. The total is your time cost.
Outcomes: define them once, count them honestly. They're the denominator for both.
The three less measurable ones
Emotional bandwidth: how much of your headspace dating is taking up. A one-to-five self-rating once a month is enough.
Growth: are you becoming a more interesting, capable or grounded person because of your dating life? Three honest sentences every quarter.
Life direction: is the rest of your life (work, friends, health) getting better or worse during this chapter?
Reading the numbers
CPN trending down: efficiency improving. Good.
CPN flat at a level you're comfortable with: fine.
CPN trending up while outcomes are flat: you're paying more for the same thing. Usually one girl or one venue is the culprit.
CPN up with outcomes also up: you're dating more. Check whether you're actually happier; the metric alone can't tell you.
Where the guide ends and judgment begins
The data gives you a baseline and tells you where to look. It doesn't tell you what to do. The decisions are still yours, made with real numbers instead of a fuzzy story.
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