Is it too late to start flirting again?

Flirtation occurs, it's super strong sexually charged flirtation.

Then people don't see each other again for a very long time, like 6 months or longer.

Is it then bad to still remember the flirtation when I see him again so many months later?

Like is this past a guys time-limit or time-line for interest?

How long can a guy stay interested in a woman? Months/years

I mean like in between seeing the person again

if that makes any sense.
Is it too late to start flirting again?
Post Opinion