Amber, simply - do as J-Go wishes period

You both know this Dom and have both gotten advice from him and have built a level of respect amongst you. Would you act any different if J-Go was there instead of being absent? I don't think so. You may be sub, but sub to One and whether he is present or not hun, I would conduct myself accordingly. The simple fact that you are not his and there was no play date planned or any preset negotiation means you are simply Amber, not sub-Amber In fact, if he demanded you call him by a 'title' or anything remotely close to an order, I would walk away and fast.

You are a highly intelligent and articulate woman and already carry yourself with a great deal of poise and grace - that's all you need, the rest I'm sure will be a lovely dinner with some stimulating conversation that you can share with J-Go when you return - Enjoy!