This is not what I would consider a MAIN factor but one of the
supporting sub-domain factors...
By itself, it probably won't be substaining the relationship...
Perhaps not even anywhere cause to there... But as much as it's a
good lubricant for life, it's a good 'lubricant' for a
relationship... More important factors 'connected' to it would be
understanding and ease...
Never underestimate this 'tiny' factor as it often can stretches a
relationship a long way and make things much smoothier...
Especially if you know how to harness it to its greatest
potential....