However, if you get into this position again regardless of the circumstances, you need to become mysterious. Leave her with a feeling of "It went great last time, why isn't he responding now".
She could be just making sure "You are still available". Not to be negative or a jerk, but you have to leave her wanting more. If there is ANY such thing as competing for your W when OM is possibly involved. You have got to show her and make her know you are NOT waiting for this type of interaction again.
You are moving on with or without her and you sure the hell won't be doing this if OM is around. Goal is to leaving yourself in the best light possible. You did that.
I haven't visited your thread in awhile, so just stating a briefly educated opinion.