gianna31 wrote:
Both of our messages say delivered,
texting the right number
don't have each other blocked.
tried restarting
shutting off iMessage,
deleting our conversation
deleting each other's contact.
I assume the following
Both of you have iOS
Both have activated iMessage
Both of you are using correct international prefix
If you have an iPhone and another iOS device, like iPad, your iMessage settings might be set to receive and start messages from your Apple ID instead of your phone number. To check if your phone number is set to send and receive messages, go to Settings > Messages, and tap Send & Receive.
If you don't see your phone number, you can link your iPhone number to your Apple ID so you can send and receive iMessages from your phone number. You can also set up Text Message Forwarding so you can send and receive MMS and SMS messages on all of your Apple devices.