I look forward to it. I think what makes them work is that they have more in common than they might realize. Pansy is a social climber, groomed to be in pureblood circles and with Justin being a baronet or something like that, they are broadly raised in the same way.
What I also find interesting is that Pansy is in a lot of stories paired with someone strong to reign in her feistyness, while in your story she much more needs someone caring and steady to anchor her.