Need to have Pro Site account page display in pop-up or iframe

Because Pro Sites account page opens page in main site, I have a major problem. The subsites are almost identical to the main site. Therefore, the user has no way of realizing that they have left their own site and that they NEED TO USE back button to go back to their own site. If the account page could open in an iframe or pop-up, then the user would still be on their site and would remove the confusion.