Picture this. You and your partner are having a perfectly normal evening. Someone makes a small comment, completely casual, maybe even a joke. A raised eyebrow. A slightly flat "yeah, sure." A pause before responding to a text. Nothing that registers to you as significant. And then the other person goes somewhere else entirely. Not dramatically. Not loudly (usually). But they go quiet, or suddenly overly cheerful in a way that feels like armor, or they start apologizing for things that happened three weeks ago, or they shut the laptop and say "I'm fine" in a tone that communicates the precise opposite. The emotional weather in the room changes and you are genuinely unsure what happened. If you're the person with the neurospicy brain: you probably know what happened. You felt something hit you out of nowhere. Something that felt, for a moment, like rejection. Your chest went tight, your thoughts started cycling, and even the part of your brain that knows it's disproportionate couldn't turn it off. And now you're managing both the feeling and the shame about having the feeling. If you're the partner: welcome to RSD. This side quest is for both of you.