Prue Halliwell/Alternate/Season 5

A Whole Different Perspective
In Season 5, when Prue goes with Jo to return to her future. It is not what it seems. Prue stumbles upon Wyatt being married to someone else, Jessica. And is in shock. It is with this, that it is revealed she is not married to Wyatt, but Nate, having a son, named Andrew with him.

Figuring Out The Messed Reality
Prue journeys to find the ins and out along with Jo to find out the current reality is the way it is.

The Truest Bond
Even though Wyatt does not remember at the moment, there is a bond there. And later on, this Alternate Wyatt begins to grow closer with Prue, and realizes that there is a bond between them, and starts steering away from Jessica who won't stop with her efforts to get him pregnant, but he refuses her every time.

Prue Starts To Lose Herself
Being in the current reality for a long period of time begins to affect Prue's mind,  she begins to accept the reality more and even starts to treat Jo differently than before, like a stranger. And this upsets Jo. Jared realizes this, and sets upon a plan, with help from a potion from Melinoe, whom will make Prue succumb to her memories permanently. And the plan works, as later on, once the potion is completed and the spell casted, Prue begins to delve into her life with Nate, and this in turn, causes Jo to fade from existence as her mother has truly forgotten her.

Wyatt Brings Prue Back
A journey with help with a cupid ring from Chris makes Wyatt realizes that Prue is the one for him. Wyatt returns and gives her a true's love kiss, causing all Warren Witches in the family to have their memories restored. Recovering from that, Prue finds herself disheartened from losing Jo because she forgot her. Wyatt then comforts her.