Back button or "file close" is a link???
 

Say I have two websites, A and B.
A has a link to B.
There is NO LINK on B back to A.
This would be a one-way or non-reciprocal link from A to B. Right?
However, when in B if you hit the Back Button or close the file, you are then taken back to A.
Do the engines classify this as a reciprocal link?

no

no...i second the motion...err