The stage of a friendzone where you cannot tell with all of your head if (s)he wants to be your boy/girlfriend or if you are their best friend forever. This goes on forever
It comes from the phrase "Buridan's ass which is a donkey that cannot decide between two equal things that are equal distances and the donkey cannot choose and therefore dies of hunger.
Dude I am in Buridan's Friendzone. Can you tell if she likes me or not?
Guys that are very bad at reading girls are often in Buridan's Friendzone