I had a similar problem few years ago.. I theoretically preferred intelligent women, but I only chose among extroverted, wild, fun impulsive types.. and I got disappointed. It's pretty easy to guess what went wrong.
When we're acting on our impulses and desires, we're not like a statistician who takes a random, unbiased sample from a population. Quite the contrary.
I still don't know what hidden, subconscious things I look for in a women I used to date. I do remember thinking that I chose the "best" so I should get the "best" - as in most fitting for me, best for relationship. It took a while to learn there was best1 and best2. What you look for and what you like when having it.