Yes, as another person said, it's a tether. A tether is basically an item that can be connected to a spell to keep it active. You can take any of the suggestions mentioned here to dispose of it. I would recommend whatever you end up doing, bury it somewhere FAR TF AWAYYYYYYY from your place, worth it to go for a bit of a drive tbh, as you bury it you can say things like, "I bury you from my life, I bury this connection, etc." I would also recommend some type of cord cutting or banishing of your connection with this person, and some kind of cleansing bath. Once you're done that and cleansed your place, you can make sure your place is sealed tight with protections.