It's obvious that you see "progress" as physical interaction. Like reaching first, second, or third base. There has been "progress" in how Charlotte and MC sees each other, and the growing temptations between them. MC knows a lot more about Charlotte and her sexual fustations and fantasies, and she is seeing him under another light. But if all that is not progress to you because they don't have their hands all over each other, you are simply seeing things from your own perspective. Others see things different.