1) Be honest
That's it. Nothing else. None of these silly policies, agendas, customs....
A relationship is supposed to be the part of your life that is both within your control and satisfying your desires, and, equally and non-contradictorily, something completely out of your control full of surprises.
Plans are made for careers and other necessities. Relationships should be the bit fo yoru life that is bedecked with risk, joy, and general emotion.