Hello Bigapplefan07,
We understand that you're unable to set up your iPhone Leather Wallet after unpairing it. The following steps may be able to help resolve this issue:
1. "Make sure that your iPhone is updated to the latest version of iOS.
2. If the setup animation disappeared, press the side button on your iPhone to put your device to sleep. Then wake and unlock your iPhone. Place the wallet onto the back of your iPhone, wait up to 15 seconds, and the animation should reappear.
3. Learn what to do if you see a message that says that your iPhone Leather Wallet with MagSafe is connected to another Apple ID.
4. There are two models of iPhone Leather Wallet with MagSafe. The models that are compatible with Find My are available in the following colors: Umber, Forest Green, Ink, Dark Cherry, Midnight, Golden Brown, Sequoia Green, Wisteria, and Orange."
More details here: About the iPhone Leather Wallet with MagSafe
Thanks for connecting with Apple Support Communities.
Let us know if this helps.