Rachel,
Sorry, I don't agree but that is what makes this life great, we all live it by our own rules.
Laura has her own rules for herself, I have mine for me. Niether of us goes out on "dates" alone. Not because the other asked us not do, but because that is how we both feel. I don't want to go out without her.
Partnership or not, I don't feel that I have the right to tell Laura she can or can not do something. I don't do it in any other part of our life and I won't do it in our lifestyle either.
When she agreed to be with me she did not agree to be ruled by me or follow some made up set of rules for her life that I may or may not have. It works for us. Not saying it is right for anyone else but has worked for many, many years for us.