How to save a relationship<br>Consider when things went wrong. If you are at a critical juncture, you can probably figure out when things started going off the rails, even just a little bit. Think about when the problem started, so you can figure out how to approach the discussion with your partner.
A relationship requires rails. 
Going off the rails is a figure of speech, a relationship doesn't require railing.  
( z1 require :ARG0 ( z2 relation ) :ARG1 ( z3 rail ) )