This is a reference to Taylor Swift’s announcement that she was engaged to the football player. She wrote, “Your English teacher and gymn teacher are getting married.”
Just to add on to Targauman’s comment, it’s a rephrasing of the common expression, “Always a bridesmaid, never a bride,” using Taylor Swift’s terms.
After that, there were a number of actual couples of that sort that posted photos. I don’t know how many of them were a male English teacher and female Gym teacher. I am sure there are some. Maybe a teacher like Hillary Forth’s Language Arts teacher:
Appreciate the explanation. I didn’t get it because the original phrase elides “I am…” at the beginning while the comic’s phrase elides “People getting married are…” instead.
Comics I Don't Understand 
This is a reference to Taylor Swift’s announcement that she was engaged to the football player. She wrote, “Your English teacher and gymn teacher are getting married.”
Just to add on to Targauman’s comment, it’s a rephrasing of the common expression, “Always a bridesmaid, never a bride,” using Taylor Swift’s terms.
After that, there were a number of actual couples of that sort that posted photos. I don’t know how many of them were a male English teacher and female Gym teacher. I am sure there are some. Maybe a teacher like Hillary Forth’s Language Arts teacher:
Appreciate the explanation. I didn’t get it because the original phrase elides “I am…” at the beginning while the comic’s phrase elides “People getting married are…” instead.