I bought these airpod pros like 2 years ago and I let my cousin borrow them like 1 month ago for like 2 hours and now the airpods are saying that the owner of the airpods can see the location of their airpods and it’s saying my cousin is the owner

Hello alexistaylor16,

Thanks for that info and for choosing the Apple Support Communities. If we understand correctly, you are seeing an alert about your AirPods Pro after letting your cousin borrow them. This means they linked them to their Apple ID for Find My, so please have your cousin do the steps in the section titled "Erase a device" in this Apple resource and then setup the AirPods Pro with your iPhone and Apple ID again:

Use the Find My app to locate a missing device or item

Cheers!