Totally and completely agree with you!!! I have been trying to prove that Stefan and Elena's relationship IS indeed anchored. You can tell. You have been able to tell since the beginning. And when a couple is so anchored and they are "in too deep" like they are, there is no going back on anything. As for Stefan walking away, yes, and even with Stefan the way he is at the moment, being compelled by klaus to not feel anything, HE still manages to feel something for the two people in his life that matter. Elena, his love, and Damon, his brother. Elena may be Damon's true love, but on Elena's part, Stefan is her true love, AND as you said very nicely, TRUE LOVE conquers ALL! Even distractions like being attracted to his brother.
Not to poke my nose in or anything lol but I'd just like to point out that Stefan is no longer under Klaus's compulsion. Klaus lifted it the night of the showdown, right after Stefan saved his life. Now, it can definitely be argued that Stefan may be having a difficult time turning his humanity back on since then but it's not because of Klaus's compulsion because Stefan is no longer being compelled.