Real Question
Should I double-text?
Quick answer
A second message is not automatically desperate. Send one if you have something real to add, then give the other person room to reply.
When it is fine
Start with the pattern, not one isolated message or moment. Context, consistency and how you feel around the situation usually tell you more than a single interaction.
When to pause
Give yourself room to notice what is actually happening. A clear, low-pressure conversation is often more useful than guessing, testing or spiralling through every possible explanation.
Bottom line
There is no perfect script. Choose the next small step that protects your boundaries and leaves space for an honest answer.