Cisco and Caitlin in “Unfinished Business”

Cisco

[emotional regarding Gypsy] We just had something so special. Shouldn't it have worked? 'Course, now it's not so special anymore, and now she's just rattling around... inside my head.

Caitlin

I'm sorry this is so hard for you. But it's okay that you're still thinking about her.

Cisco

I don't think you understand, Caitlin. I mean, she's literally... inside my head. I can't vibe. Everything I vibe connects to her. I put some music on, I hear her voice singing along. I'm painting my figurines, I see her face on Captain Kirk's body. Shhhh... do you smell that? Of course you don't. 'Cause that's her perfume, [laughing nervously] and I'm the only one smelling it.

Caitlin

Of course. Your powers linked you guys over pan-dimensional space-time, so it makes complete sense that your vibe echoes would be–

Cisco

–connecting us to each other, yes, I know. Thank you for the diagnosis.

Caitlin

I'm sorry. You don't need a doctor, you need a friend.