I read your thread faithfully and I never know what to say or advise when your rubber band snaps, and it doesn't help that I am wired to give practical advice rather than emotional support. This probably isn't very DB, but would it help for you to tell him it would be more comfortable and less awkward for you if he at least clarified the situation with his parents?
Enjoy your fall day (we don't really get "fall" here like you do on the east coast and I am jealous). Pumpkin Spice Latte, maybe?
