At the beginning of any new: friendship, romance, intimate-relationship or marriage - - - no one can
reliably predict or guarantee just-how it will evolve-and-end.

All depends upon a dynamic interplay among direct participants, their extended families, friends,
neighbors and key community members; and upon the total environment within and around God's 
Astronomically-Tiny Space-Ship which is essentially isolated from Extra-Terrestrial-Material-Resources
that are most like those most Coveted-Within Space-Ship-Earth.  It is not helpful for anyone to pretend 
otherwise, or to try to predict-or-control aspects of the evolution of any truly healthy and-integrative 
Intimate-Relationship.  Intimate-Relationships are NOT Engineering-Projects that are planned in advance!