Exactly. We’re in a monogamous relationship and have made legal and spiritual contracts to be faithful with eachother, so it’s fair for my SO and I to “own” each other in a sense. That doesn’t mean we get to tell each other what to do, it just means we have an expectation that they won’t go looking for an outside relationship.

It’s like saying “my gym,” I have a contract that states I can use their facilities. I don’t own that gym, but I do have a certain level of expectations.