Over-sentimentality, over-softness, in fact washiness and mushiness are the great dangers of this age and of this people. Unless we keep the barbarian virtues, gaining the civilized ones will be of little avail.
You try and nurture the relationship. This day and age we have to do a little more networking than we used to do. All that does is make sure you befriend the people you are working with on a project so you hopefully carry it over to the next one.