So I recently stumbled upon a blog post that is in favor of Fitzphie but goes through and explains a lot of their relationship, but not only Sophie and Fitz's but also Sophie and Keefe's as well. So here's the link if you want to read it.
Here's the discription: A compilation of nearly every Sophitz argument ever created, a large selection of issues in Sokeefe, and popular Sokeefe counters proven wrong. [For Sophitzers, but you can still counter if you'd like. And if you are countering, please read through the entire thing first]VERY VERY VERY LONG (if you get overwhelmed by that kind of stuff, this may not be for you)
Anyway I just kind of found it interesting