Attractive, Intelligent, Sane
At 18 you can pick 3 but always focus on one. You’re looking for “true love”, but your crotch isn’t.
At 25 you can pick 2, but you still don’t know which one is most important. You’re looking for “Mr/Miss/Ms Right”, but are starting to feel like you’re Mr/Miss/Ms Leftover" because a lot of people pair up before you.
At 30+ you can pick one, but you’re mostly looking for someone who matches you “child-free” status. You’ve realised a relationship is something you make, not something you find. This is the age to be wary of “gold diggers” looking for a bankroll.
When you’re 35+ it turns from a structured partner hunt into “fuck it, we ride”. At this point, you just want to enjoy life, because there isn’t much free time!