Pennsatucky's storyline came to a tragic conclusion on the penultimate episode when she seemingly took her own life after not being given the appropriate amount of time to complete her GED exam. It was a cruel way to end the storyline for a character who beat the odds so many times.
Piper and Alex were one of the best couples on TV several years ago. Along the way, they each done terrible things to each other. So, what do they do? They get engaged and then married, and they're probably on their third fight of the day as we type this.