I can see where you're coming from SouLeSS. The Peter and Olivia relationship felt forced given what we saw on screen. I felt there was another layer of mystery that brought them together. Kind of like the music from Battlestar Galactica that brought the final five together.
Are the Observers still in all the episodes? I gave up and forgot to look for them because the whole Walternate, universe destruction thing is so darn interesting.
The whole universe destroying talk sometimes bugs me. The universe is a big place and for such technologically simple humans to have the capacity for its destruction seems far fetched, even for this show. Not to mention that in either dimension there aren't any other higher lifeforms to stop such a thing from happening is also absurd. We already know there are "aliens" in the form of the Observers, so why can't there be more.