It went something like this

«What's the matter?»
I'm just sad.
«Sad? I don't understand.»
I'm sad because I miss you. It's not the same without you here.
«But I'm with you now. I always will be, just without tuna.»
Yeah, that... I can't do tuna anymore because it reminds me of you.
«Your loss.»
Don't be cruel.
«I still don't understand. I'm with you like I always have been. My body was a formality - you needed me to be tangible, so I was.»
...
«Do what you have to. Would it make you feel any better if I went away?»
No, don't. It will take a while for me to process this. I feel a little ridiculous for mourning at all. It was the right thing to do but I feel horrible anyway, like I failed you.
«I'm not complaining. The body failed me, not you. I can't leave anyway. Where would I go?»
You were so young... I never got a chance to--
«to what --give me tuna? ::purrs:: Truly the highlight of my decline...»
I miss you, Grady.
«I know.»
I can hardly function.
«That will pass. I'm always with you, always a part of you. Find a warm spot and take a nap. Enjoy new smells. Ask questions. Stay clean. Oh, and one more thing..»
What's that?
«Thanks for all the tuna. It was awesome.»