Aka "Nerd Crush"
"When you have a crush on somebody whom you would not normally go for.
You become nervous while talking to them, or sometimes even just talking
about them. The crush is a type of crush for all ages but when you
have a nerd crush it is like you are in middle school again.
Not meaning you have a crush on a nerd but that YOU are a nerd
because you get nervous when you talk to them, start sweating profusely,
etc."
Urban dictionary
"a person—usually a writer, journalist, academic, or perhaps a
politician—who may or may not have the look of a sex symbol, but is
extremely attractive because of his/her mind, his/her opinions, and
his/her oeuvre."
The Art of the Intellectual Crush
"Characterized by love of their mind, independent of their body or physical attraction"
Urban Dictionary