For all Kara knows, things between her and Lena are totally fine. She’s showing up at her apartment to give her Lex’s journals that she stole from a government facility because she thinks they will help Lena heal. She didn’t regret or second guess her actions for Lena at all. It’s not like she’s hovering there just watching Lena contemplating whether or not she’s doing the right thing. In her mind she 100% without a doubt is. So look at her in the top right gif. Nothing is making her react like that other than Lena herself. Look at the way she exhales *cue TakeMyBreathAway.mp3*. The way her body is reacting to just the sight of Lena. Her yearning expression. Like she can’t even fathom how much this woman means to her (You Mean The World To Me is literally the name of the song that played in the background during this scene!) and what she wouldn’t do for her. Almost as if it’s all hitting her right there in that moment. You cannot look at this and tell me that there is no way that Kara Danvers is not in love with Lena Luthor.