In fact, the smarter you are, the more clueless you will be, and the more problems you're going to have in your dating life. Smart people spent more time on achievements than on relationships when growing up. And smart families are usually achievement-oriented. The upshot of all that achievement is that you get into a top college -- congratulations!
Once upon a day I used to be pretty smart, and believe me, I had a lock on clueless. -- and then continue doing even more of what you were doing before.
To put it plainly, you are programmed to reproduce. Let's say by "smart" we mean "in the top 5 percent of the population in terms of intelligence and education." Generally speaking, smart people seek out other smart people to hang out with, simply because they get bored otherwise.
Now quit thinking you're smarter than the 3 billion base pairs in your genome and 4 billion years of evolution. And if they're going to spend a lot of time with someone, intelligence in a partner is pretty much a requirement. Now, luckily, the world's kinda big, so the remaining 5 percent of the gender of your choice is still a plentiful 160 million or so people.
So maybe you dress frumpy and don't pay a lot of attention to your appearance.
Their DNA had a vested interest in perpetuating itself, so it made sure that happened. And maybe when you're really sloshed at a party and your whole frontal lobe is on vacation in the outer rings of Saturn, you've noticed that your lizard brain knows exactly how to grab that cute girl by the waist for a twirl on the dance floor.
Or knows exactly how to arch your back, flip your hair and glance at that handsome hunk just so such that he comes on over to say hi. By virtue (or vice) of being smart, you eliminate most of the planet's inhabitants as a dating prospect.
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.