Relation is a very sensitive thing. Never take it for granted that the relationship will be good and continue as same
forever.
One should have take utmost care to keep the relationship healthy. We can take few examples here *
Customer and Vendor * wife and husband * friends * employee and employer.
If a vendor finds that his relationship is very good with customer and he does not take care of the relationship and taken for granted the good relationship forever, he may be wrong. The Customer may sign a good deal with another vendor who provides very good service to the customer.
Same as the case wife and husband. If the
relation among a couple is very good. And any one of them does not take care of the current relationship and one misbehaves to another, one does not care for another. The time may come that the couple may not be interested to stay one with another.
So, one should take utmost care to keep the relationship healthy and should not take for grant a good relation.