I will assume "talk to text" means:
- You are using Siri to send a message.
- You are sending it to an iPhone.
- The message is being sent using iMessage (which may or may not be true, even if your husband has an iPhone).
- The message is not part of an existing thread, but is actually beginning a new message thread.
So presumably you are invoking Siri to send a message to your husband's iPhone, and are dictating the contents of the message to Siri.
Assuming it actually was sent using iMessage (blue bubbles), check Settings > Messages > Send & Receive > Start New Conversations From and see it is set correctly.