Eliza smiles, not with relief, but with the knowledge that Henry is a child needing to be humored. The power is with her.I really like your interpretation, but Eliza's expression, to me is one of submission, and I guess that's what kills it for me. I just can't escape her expression. Regardless of his line, it's her inaction I take exception with. But I must say I like your take on it and will try to keep it in mind the next time I watch the movie.