Double L, every couple has different rules. We, always try to find out who we are talking to, where the other one is and if its okay to, even just talk with out the other one being there. Some couples we talk to, it seems like I am always talking to the same one person. Some always communicate together. Its not your fault, if they had that rule he should of known better. They have a communication problem they have to work out themselves. Just try to get all the rules and regulations up front and always ask if the other partner would feel comfortable with what ever you are doing. Thats all you can do its up to them to be honest with their partners.
Luna