I have so many thoughts on the friendship between Flynn and Cassandra, I could write a million essays on it. But something that has really jumped out to me during my current rewatch is the way these two just easily understand each other without even trying.
They talk without having to verbally communicate most of what they're saying. They don't even seem to be aware of the fact everyone else in the room is looking at them in confusion because they can't hear the unspoken parts of the conversation.
They bounce ideas off each other so easily, instantly pick up on each other's trains of thought, and practically finish the other's sentences or ideas.
These two neurodivergent geeks, who never had anyone in their life truly grasp what goes on inside their head, suddenly found someone who knows and it's like they instantly latched onto that connection.
Cassandra also has her very close friendship with the other LITs, and Flynn has his relationship with Eve, but it's their friendship with each other that lets them both explore and indulge the parts of themself that other people just don't understand.
Cassandra is definitely the one out of the LITs that is most like Flynn, both in her skills as a Librarian and also in her personality and how her lightning speed thoughts tend to get translated into her words and interactions with others. (Which is a whole other topic I'd love to dive into another day.) But, yeah, it makes so much sense why they have no trouble at all understanding each other.
(Edit: Nope, that was supposed to be the end of the post but I have too many thoughts that need to be shouted into the void. Their friendship is very important to me. So...)
Jumping back to the very beginning - During the first two episodes, Flynn is perpetually annoyed by Ezekiel and just kinda ignores Stone. But Cassandra… He's absolutely fascinated by her from the moment they first meet. He takes a minute out of their incredibly urgent life-and-death mission to discuss her being a synesthete and geek out a little over the fact she has an eidetic memory like him. And Cassandra's immediate reaction of "Yes, wow" is like she can't believe someone is capable of immediately understanding what's going on inside her head and is 100% okay with that and not at all bothered by her being "different".
And then they get to Stonehenge:
And I think this is the moment Flynn really starts to appreciate how brilliant Cassandra is, and how very much like him she is. Flynn is a fairly competitive person with a genius brain like no other, but he doesn't get upset or offended when she takes over the calculations, and even carries them out faster than he could have. If anything, he looks genuinely impressed. He instantly understands what information she needs and readily gives it to her so they can continue solving the puzzle. They immediately settle into this easy back and forth, this rapid exchange of information and clues as they work at putting together the pieces. He's able to talk to her in a way he can't talk to anyone else. It's probably been a long time (if ever) since he's interacted with someone who can keep up with him.
Even after Cassandra has betrayed Flynn -- causing him to lose his home, the only family he had left, his best friend, and potentially his life -- he instantly accepts her back on the team and even sticks up for her when the others object. At this point, she hasn't apologized, shown any indication of remorse, or had a chance to make amends. And it doesn't matter to him. "She had her reasons" - and that's enough for him. He lets her out of the cell and immediately wants to hear her plan for stopping the Brotherhood.
And I think this is the moment when Cassandra -- similar to Flynn's realization at Stonehenge -- suddenly realizes that someone else can grasp her thought process. That someone understands the way her brain works. That someone is capable of following her trains of thought and not getting lost in the ordered chaos of her mind.
Just look at her smile!! She is trying to get across what she wants to say, and she's so used to having to break things down for others and still not being understood, and here's someone who instantly picks up what she's trying to convey. Look how utterly happy and excited she is when he gets it.
I love how much they appreciate each other's genius. I love how they can communicate on a different level. I love how much they genuinely care about each other.
And I absolutely love that it's through Flynn that Cassandra manages to have her moment for redemption, because he's already clearly demonstrated that he's the one member of the group she doesn't have to prove herself to.
I love that Flynn has zero people skills and a very weak grasp on the concept of friendship and yet he meets this brilliant, weird, amazing young person and pretty much instantly connects with her. Because, like her, he also spent most of his life invisible and now someone actually understands him and is already so important to him, even if it's a while yet before he'll really fully understand the concept of friendship.
I love that Cassandra has spent most of her life feeling unseen and never truly accepted by the people around her. And then she meets someone who immediately sees her and understands how her mind works and appreciates and trusts her, and who introduces her to this life of mystery and magic where she can use her talents to save the world… and she already knows that he's important to her even if she doesn't realize just how much her life is going to change because of him.
There's SO MUCH more I could say about their friendship, but I should probably channel some of it into an actual blog post at some point. For now, here's some cute moments I grabbed while getting the screenshots for this post:
