[ "because they haven't left you" is on the tip of her tongue, but she could do better as far as phrasing goes. ]

I don't suppose there really is a way to be certain. Just to know what you are receiving, and that even you are is itself a miracle.

Tell me, is it really something you have, or is it something that has you? [ is it as simple as that? hardly, but it's the way she at least wants to think she sees it, more possessed than possessing. of course, she's far too clingy in practice for it to be entirely true. ]