You got some good rules and I have to say that I concur with all of them and agree that they are valid for any kind of dating. We don’t have a lot of rules except one which may be considered odd in the poly world (but hey, it works for us). We only see other people together. We don’t do separate dates. I have another partner and although I talk to him by myself, we don’t ever see him except together, although this has become somewhat moot since we moved to the other side of the country. So, in essence, I have someone whom I am deeply emotionally committed to and who is in many senses a part of our family, but who I almost never get to see in person. This doesn’t fit a lot of pre-fab boxes either, but it works for us, even though I miss him.