I don't think your D2 cares where she sees him. If you don't want him to watch her there b/c he left a mess, tell him. Tell him if he wants to see her there he needs to clean up after himself and her. If your angry about it, you don't have to express it to him, but you have to own in in yourself. Dealing with anger is tough esp when it can't be expressed as in a "normal" R.

You sound good. Hang in there.