This is by far the best season (for me) because of this angst and heartbreak (for some odd reason I just love angsty stories). I still remember in season 1 I was a Delena worshiper and hated Stefan to the core...but now its the other way around (except I don't hate Damon but he needs to keep his pretty-charming a** way from Elena😛). These different portraylas of Stefan have made me realize how wrongly I took this character to be, mostly because I kept on comparing him to Edward (BIG mistake) anywhoo...I'm loving this angsty side to Stelena because it truly shows their deep love and devotion to each other. When I see Delena/Stelena now its just so clear that Stelena SHOULD be together in every step of the way, (I don't want to start a Delena/Stelena war here, just pointing out why I am over Delena now). I agree with you that the two Stelena scenes of last week's episode had me almost in tears. I'm excited to see how this turns out for Stelena in the future, but for now I'm totally on the Stelena ship, nothing will change the way I feel about them as a couple.
As for Klaus, I'm just loving him more and more as the show progresses😛