First of all, English is not my mother tongue. Secondly, I was wondering if there is such a word in the English language that describes a person, who owes you some favour (not really money tho).
Like, for example:
I did the washing up when it was your turn. You owe me a favour. You are my _______
Can I use words such as borrower or debtor? Because I feel like it only refers to owing somebody money.