I went hunting and found OOP’s blog. There isn’t much more to the story, which I will transcribe here:

until like LAST WEEK
professor B publishes a paper that casually drops the word “husband”
and obviously all the students are like “oh i didn’t know u were married!” because we read that shit like how white suburban mothers read People Magazine
and shes like “yeah, it’s Professor A”
and we all FLIPPED. THE FUCK. OUT
we thought the framed picture of the two of them on professor A’s desk was ironic because hes that type of guy