I mean, not that we need empirical evidence to make this correlation, but here it is.
Here’s the thing: your romantic success has nothing to do with your mental jewelry and everything to do with how you make the other person feel. And making someone feel a certain way is a somewhat nonlinear process that requires a different kind of mastery than that of calculus or Shakespeare.
In other words, you need to earn love (or at least lust). Sadly, no mom, dad or professor teaches us about the power of the well-placed compliment (or put-down), giving attention but not too much attention, being caring without being needy. I wrote a whole 280-page book about that, so that’s a story for a different day.