Here's the question, are you just his puppet or are you something more? He doesn't know it anymore, but it seems that you have become a fundamental piece in his life, or at least he thinks so.
For someone like Mikey, knowing what is important and what is unfundamental is something hard, since he has pushed away everything that mattered to him, like a cat before dying you could say.
But in the end that's what he did, die, die alive, he doesn't remember the last time he could laugh without faking it, or at least the last time he could do it with someone other than you.
That's why today he called you in the middle of the night to go sleep at his house, no, he doesn't want to have sex with you, he just wants to remember what it feels like to be able to sleep with someone knowing that that person is not going to stab you in the back.
"Everything's fine?"
You asked, walking towards his bed, shit, how could he live without hearing your sweet voice?
"I don't know, but you told me I should start sleeping more, I can't sleep without you."
He answered you, a phrase which surprised you, he is an open man, yes, but he had never opened up to you that way, even if he said it with disinterest, you know that they were genuine words.