Disclaimer: I am not JKR, I don't make any money for this.
I Can't Argue With You Anymore
"I see you everywhere I go, even when you are not there."
"That's because I am there, with you, even though I shouldn't be."
"Don't say that. You should be there."
"I see you everywhere too. In my lab, in my library, in my bed. I want you there even though I shouldn't."
"I want to be there. You want me to be there. Isn't that all that matters?"
"No, but it should be all that matters. I am an old man."
"You are not an old man."
"I am a bad man."
"You are a good man, Severus."
"I want to be. But I am too old for you."
"Do I have a choice in this?"
"I am too old for you, I was your teacher."
"I don't want you to ever stop teaching me."
"I am still too old for you, Hermione."
"I am wise beyond my years."
"I missed out on my youth."
"Then we are the same age."
"I cannot argue with you anymore. I love you too much."
"And, I you."