make me choose: break up in s1, s2 or s3?

We were stupid. Sneaking around thinking that we weren’t gonna get caught. I know. We did this, Stefan, Jenna’s in the hospital, and Jeremy could be next, all because we didn’t we didn’t listen to her, because, because we’re together. Stefan. I know what you’re gonna say. Then let me say it. I’ve been so selfish because I love you so much.  And I know how much you love me, but it’s over, Stefan it has to be. Elena, I don’t- No Stefan, it has to be.“