Which one is correct ...afterwards or after that?

[little_mosquito]

Which one is grammatically correct:
Grandpa didn't really live for long after that.
or
Grandpa didn't really live for long afterwards.

 

[Loob]

Hello little_mosquito

I think that both "afterwards" and "after that" work.

(The part that worries me slightly is Grandpa didn't live for long.)

 

[little_mosquito]

Thank you Loob.
Is "for long" incorrectly used or something?

 

[Parla]

It should simply be long, not "for long".

 

[dipsota]

For long is usually used in questions and negatives: Have you known them for long? I haven't seen her for so long that I've forgotten what she looks like.