It is unique in the fact that while you have no desire to go back to your own world, you still were lonely in this universe. And being in this lab all on your own is that unique position you found yourself in. For a long time, it was just you and your decorations. Everyone else had either gone home for a visit, or they were off futilely chasing after my subordinate.

But not you. You held down the fort, as they say. On your own. I had not yet been able to test someone under these conditions. Oh sure, I could have tested just one person on their own when I first brought them here, but you had time to settle in, make friends--and then be torn from them.