What does “type” mean in this text?

Question

I'm reading this book, and there is a love scene in which I don't understand the usage of the word "type".
Here I quote a large chunk containing the word in question:

The whole affair was the precise opposite of what I figured it would be: slow and patient and quiet and neither particularly painful nor particularly ecstatic. There were a lot of condomy problems that I did not get a particularly good look at. No headboards were broken. No screaming. Honestly, it was probably the longest time we’d ever spent together without talking.
Only one thing followed type: Afterward, when I had my face resting against Augustus’s chest, listening to his heart pound, Augustus said, “Hazel Grace, I literally cannot keep my eyes open.”
“Misuse of literality,” I said.
“No,” he said. “So. Tired.”
His face turned away from me, my ear pressed to his chest, listening to his lungs settle into the rhythm of sleep. After a while, I got up, dressed, found the Hotel Filosoof stationery, and wrote him a love letter: ...

(from The Fault in Our Stars, by John Green)

Answer 1

The expression is [to] follow type.

It means to run true to form, to occur in a predictable way.

It is uncommon nowadays, perhaps considered a little rarefied. I haven't found it in any dictionary other than All Dictionary, where it seems to be used incidentally; perhaps 'follow form' was intended.

The associated sense of 'type' is given by dictionaries, eg AHDEL:

type b. An example or a model having the ideal features of a group or class; an embodiment: "He was the perfect type of a military dandy" (Joyce Cary).

OALD, I think (but it keeps misdirecting me to 'type I': but ODO/OALD is usually what the 'Google Dictionary' quotes) has the definition and synonyms

a person or thing exemplifying the ideal or defining characteristics of something.

"she characterized his witty sayings as the type of modern wisdom"

synonyms: epitome, quintessence, essence, perfect example, archetype, model, pattern, paradigm, exemplar, embodiment, personification, avatar; prototype

So 'follow type' would be 'conform to the expected pattern'; it is idiomatic in that padding words are not included (contrast *'follow pattern').

Again, rare nowadays.