Remember that episode where Casey starts to date Lizzie’s soccer coach Scott and like everyone likes him even Derek but then this douche tells Derek that he’s dating three different girls plus Casey and like the instant he tells him Derek’s face just instantly drops and you can tell he just wants to punch this guy in the face.
Cause I just watched it and it’s just so pivotal and not talked about enough. Because Derek spends the episode trying to figure a way to tell Casey that this guy is a jerk off. But why wouldn’t he just tell her, yanno? Why does he struggle with it? And there’s a moment where he walks into her room to tell her and he looks just really distraught and before he goes to tell her there’s a cutaway scene of him thinking about how she’s going to react, right. And it’s him thinking she’s gonna take it well and say thank you for being honest cause she knows that was hard for him and that’s he’s a really good brother for doing that. But that makes him just groan and leave the room.
So it just makes me feel like that was his moment for realizing he liked Casey. Because before that Casey always called him step-brother making emphasis on the step and no relation whatsoever. And that’s always so crucial in my head when they start switching the step term. But that’s another rant. Obviously he doesn’t care if she thinks he’s nice. They’ve done it to each other before and helped each other out. And Derek hates tears and he thinks this is gonna go through smoothly. So why back out in just telling her?
Except that he realized that he doesn’t want to be her brother. He wants to be something else. Something more.
It’s just my opinion and that was really rambling and incoherent but yeah. I feel like that’s his moment for realizing he has something for Casey.