Who is at fault.

Somhow we ended up with a two side arrow your at one end and i am at the other,
We were like rope, knitted together in oneness not knowin too much tag of war would slowly seperates us
We had a set plan to embark on a jouney but somhow along the way somone took a detour
Who's at fault,?
 who's mind was changed?
The journey was very long and someone got tired yet the other was too focus on going to the destination blocking out distractions, others and frustration but one partner was to weak to stick to the plan
So near to the end of the journey the other could not find the one who she begun with at the starting line
Searching..... searching........ many questions asking, many investigations open, many tears crying yet the mystery of what happened is yet to get closing
A missing puzzle, a missing rib, even missing to road back to where she once lived, everything is gone and her she is alone not a tex no call not even an alarm from the phone only thoughts, wonders
Confusion and pain and questions unanswered that won't even be answered again but who's at fault please tell me Mr Glen.