Clarifying a passage containing ちょっと待てよと思った from がばいばあちゃん


I want some help clarifying a passage from がばいばあちゃん, specifically in chapter
1, page 13.

The preceding text is about sad events which lead to his father's demise. Then
it follows:

> 切ない話である。しかし！ _俺は大人になった時、ちょっと待てよと思った。_

After that, the narrator tells of how he asked news of his father's condition
when the latter was hospitalised.

I assume the text in _italics_ is addressing the reader. My reading is '[When
I was writing about this sad story] I was thinking you should hang on for a
bit until I've grown up [because there are happy events afterwards]'. I guess
the ~時...まてよ is telling the reader to wait until the narrator has grown up (in
the story).

Is this the correct reading? If someone could clarify or correct me, I would
appreciate it.

* * *

**Context:**

> 広島にはまだ原爆の放射能がたっぷりと残っていて、とうちゃんは原爆症になってしまったのだ。  
>  ほんの少し、家の様子を見に行っただけだったというのに……。  
>  そんな訳で、俺が生まれた時には、とうちゃんはすでに病床の人だった。  
>  とうちゃんも、そしてかあちゃんもまだ二十代の頃の話だ。  
>  切ない話である。  
>  しかし！  
>  **俺は大人になった時、ちょっと待てよと思った。**  
>  そして、かあちゃんに聞いた。  
>  「かあちゃん、とうちゃんって俺が生まれた時はもう入院してた？」  
>  「うん。してたよ。」  
>  「じゃあ、俺がかあちゃんのお腹の中にできた時は、まだ元気いっぱいやった？」  
>  「ううん。もう入院してた。」  
>  「そんなら、一時帰宅とかしたことあったの？」  
>  「ずっと入院したまんまよ。」  
>  「あっ、そうか。病室が個室やったんか。」  
>  「まさか。あの時代の病院は、どこも満員。個室なんか、なかったよ。」  
>  おかしな話である。  
>  しかし、これ以上追求すると、かあちゃんは赤い顔をして、もごもごと訳の分からないことを口走り、どこかへ消えてしまうのだ。  
>  (Source:
> 「佐賀のがばいばあちゃん」第一章[ｐ１３](http://www.tzone.org/~nori/jse301_302/saga_no_gabai_bachan_01_12_2011_pp_012_013.html),
> [ｐ１４](http://tzone.org/~nori/jse301_302/saga_no_gabai_bachan_01_13_2011_pp_014_015.html))




In

> 俺は大人になった時、ちょっとまてよと思った,

the writer is reciting a moment when, after he had grown up, while he was
reminiscing about or retracing the course of events leading up to his father's
death, he stumbled on some detail thitherto unconsidered that might
potentially change his perspective on the whole thing, and that made him go,
"Hey, waaaaait a second."

Now with this understanding does the following literal translation make more
sense?

> It's a touching story... However! When I became an adult, I thought, "Wait a
> sec!"




In

> 俺は大人になった時、ちょっとまてよと思った,

the writer is reciting a moment when, after he had grown up, while he was
reminiscing about or retracing the course of events leading up to his father's
death, he stumbled on some detail thitherto unconsidered that might
potentially change his perspective on the whole thing, and that made him go,
"Hey, waaaaait a second."

Now with this understanding does the following literal translation make more
sense?

> It's a touching story... However! When I became an adult, I thought, "Wait a
> sec!"

