I think it may be helpful to discuss why they are asking. I don't see it as rejection at all, to me it sounds like they see something you don't. They feel you ae making a lot of progress and it may be helpful to you at this point to see how you handle taking an occasional week off. Based on their response to you saying why you wanted to meet next week, I get a hunch that maybe you are starting to spend more time chatting rather than working on any distress. (I have no idea on that, just a possibility.) Anyway, it may be helpful to ask the why.