**SPOILERS ALERT**
So, for me, Fringe was really a love story. Why? Because Peter is my hero, and the kind of love they shared is the kind of simple love that transcends time (and timelines), universes (both whole and shattered), and just overcomes all things that stand in its way.
Here we have two people that have just simply given up on love. Peter can't be pinned down to one place, and Olivia has massive trust issues, especially after John Scott. But then, even John Scott was a strange occurrence in Olivia's life. The exception, not the norm. Olivia is someone who doesn't fall easy or so they present her.

I have a problem with the whole John Scott dynamic, however. We see the "warmer and vulnerable" Olivia in some scenes with Scott. I would have rather us to never have seen that side except with Peter. And not until much later in the show. That Olivia we see then just doesn't jive with the Olivia we see between Scott and Peter. I guess you could argue Scott started waking her up emotionally, and she shut back down after his betrayal. But that's not how it felt. That Olivia we see with Scott just didn't feel natural.

When Olivia returns and finds out, she expresses all the feeling us as views had been having about the whole situation. And I feel for Peter. The differences in Olivia while she was Fauxlivia are completely understandable! He felt it was their relationship that had changed something in Olivia. And who doesn't want to feel they are bringing out a different side of someone they are with. To be fair, Fauxlivia was more warm, carefree, sexy, and open than Olivia. What man doesn't want to feel like his love brings those aspects out of the woman he cares for!?

And how strong does a love have to be to pull someone back who's been erased from a timeline? I mean really? Pretty damn strong. And that's my whole point of way I admire this love story so much!

That folks is what love is all about.