I did this for them, so they should do that for me.
I’ve done three things for them now. They owe me three.
I sent the last one, now I have to wait for them before I send another.
There are some things keeping score is useful for. Sports games, whether the amount of money in your bank account is enough to buy food, how much sleep you’re getting.
But when you start keeping score like this with relationships, they’re done.