They were asleep. In a meeting. Thinking of how to answer carefully. Busy being a person with a life. 'They don't care about me' is almost always the least likely of those explanations.
Don't fill silence with your worst fears.
The story you tell yourself while waiting for a reply is almost always wrong. And acting on that story — sending follow-ups, getting cold — creates the exact outcome you feared.
Context matters more than timing.
Someone who responds slowly but deeply is more present than someone who responds instantly with nothing. Count the quality, not the speed.
Busy is real.
Adults have jobs, families, obligations, mental health days. Someone you like being unavailable for a few hours isn't rejecting you. They're living their life.
Your security shouldn't depend on their response time.
The most attractive thing in a conversation partner is someone who isn't monitoring timestamps. Be genuinely okay waiting. It changes everything about how you show up.