I thought a lot about it. After a lot of theories, I've decided that she had him putting stuff away and/or cleaning up downstairs. WHY?
1. She told him quite a bit (not just "get my edibles--the grape ones that are almost gone"), like giving instructions or something.
2. Of course she wouldn't want her fans to hear this discussion.
3. He didn't look happy about it, though when does he ever look happy.
4. He was gone awhile, at least 5-10 minutes. There was some intensive activity occurring.
5. Nothing obvious came of this interaction. No food was cooked. Nothing was brought up to her. No discussion on the results of said activity.
6. They went down to play their games and eat their nasty McD's not long after he returned.
Guessing either a box mountain had started forming in the living room OR extensive cat vomit on the couch.