Teacher's Pet(Glee Story)

Finn likes Summer and Puck is great friends with Summer but only problem is that Summer has a crush on the teacher.
Whoever said you can't be a teachers pet when he's already married? Along the road Summer's obsessed attitude changes with rage when she's replaced from "Cheerios" and the "Glee Club".
Can this teacher's pet get back to her old ways instead of stalking the only teacher she has?