Love is blind is a false phrase perpetrated by those who only see a relationship from the outside. Who see only the shallow surface and mistake it for the whole.
While this phrase seems to be an indictment of those in love, in fact it is merely a reflection of the observer.
To the observer it seems as if disparate people have joined and they cannot fathom the connection. So with limited understanding they impose their viewpoint. They cannot see the attraction, so they determine that love itself must be blind. Except this is a false image.
Love is not blind. It sees deeply and knows deeply.
So our conclusion must instead be that the observer is admitting to their own incomprehension.
Pelgris 