It's funny the things we remember out of all the years that go by.
In one conversation, he told her that she reminded him to his best friend Lexi who was killed by Damon.
Were Married, Husband and Wife (Stefan died, leaving Caroline widowed); Best Friends, Former Allies; Sexual, They were in love with each other, Cared about each other, They were willing to start a life together, Caroline will always love him. He became her mentor, teaching her how to control her emotions and thirst for blood.
When Damon was about to stab Caroline, Stefan stopped him, promising her that he would never let anything happen to her.
You told me once that I would fall madly in love without realizing it. Stefan saves her after Damon attempted to kill her.
Later Caroline started dating Stefan's brother, Damon.
The relationship between the cured vampire doppelgänger, Stefan Salvatore and the vampire, Caroline Forbes. In Season One, Caroline felt an attraction for Stefan, but he rejected her immediately because he was interested in Elena.
I remember how you told me that when I was ready for you, you would be ready for me. I think a part of me has been ready for this day since the moment I first saw you, the new mystery guy in the hallway at school. A hundred years from now, I will remember this moment for the both of us.
Stefan and Caroline team up against a new threat in Mystic Falls, The Heretics and while boarding up Caroline's house, the two share a moment.
Caroline later gets kidnapped and taken by Enzo who was following orders from Stefan and Damon's mother Lily.
Their friendship deepened, culminating in a kiss, but Stefan was unsure of how to move forward, given the fact that Caroline's mother had just died, and Damon had planted doubts in his mind.