Do Past Messages Reappear When Re-Adding a Deleted Contact on iPhone?

Hi Apple team,

I have a question about how iMessage works with deleted contacts. A few years ago, I had my friend's phone number saved on my iPhone, and we exchanged some messages. We both had iPhones. Since then, I deleted his contact from my phone.

Now, I’m considering adding his number back to my contacts, but I’m concerned about whether the old messages will reappear when I send him a new message. Both of us have iPhones.

Could you please clarify if adding his number again and sending a new text message will cause the old messages to show up on either of our devices?