Peter, you stay away from them sheep!!!
I have no right to an opinion, but I will disregard that to offer this thought. Every connection between two people is an ongoing created thing, and doing by prefabricated rule-sets is already a risk. It starts to fade the moment it is no longer being created,on an ongoing basis.
The only rules I can think of that work are (a) be honest (b) be kind (c) be willing for the other person to be who they really are and (d) be willing to experience anything evolving in the relationship (meaning, don't have hard and fast expectations about how it "should" be). The less opinionation and the more live communication, the more eternal the relationship becomes, IMHO.
regards,
Amos