Raincheck - who is meant to re-initiate?

Anonymous
If someone asks for a raincheck and offers a reasonable excuse for it, as in literally says "raincheck" for a date a request who is meant to initiate again? The person proposing the raincheck or the person who asked for the date?

Also, is it reasonable to throw the ball back in the other person's court and if so is it understood that you won't be asking again?
Raincheck - who is meant to re-initiate?
3 Opinion