Should Sisters Split the Bill for a BOGO Lunch Deal?

AITA for thinking my sister should split the bill after using her app reward for a buy-one-get-one lunch? Opinions are divided on the fairness of this situation.

Maryjane

Published in Interesting
25 Nov 2025

Should Sisters Split the Bill for a BOGO Lunch Deal?

In a world where dining out has become a social staple, navigating the nuances of bill-splitting can sometimes lead to unexpected disagreements. A recent Reddit thread has brought to light an intriguing scenario involving two sisters and a buy-one-get-one lunch deal that many can relate to.

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The original poster, a 28-year-old woman, found herself in a bit of a bind when her sister Clara used an app reward to score a fantastic discount on their meal. While both enjoyed the benefits of the deal, the tension arose when the bill arrived.

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Clara expected the poster to pay for her part of the meal, arguing that her use of the app reward meant she shouldn't have to split the bill evenly. This perspective left the original poster feeling frustrated, as she believed the most equitable solution would be to share the costs, given that both sisters enjoyed the meal together.

What ensued was a disagreement that left the sisters at odds, raising the question: Who is in the right here? As this thread unfolds, users are weighing in on the matter, exploring themes of fairness, communication, and the expectations we place on one another in social settings.

Join the discussion to see how others perceive this sibling dilemma and what solutions they might propose to mend the rift.

Original Post

So I'm (28F), and I went out to lunch with my sister Clara the other day. She had this great app reward for a buy-one-get-one lunch deal, which was awesome.

We both enjoyed our meals, no doubt. But here's the kicker - when the bill came, she expected me to pay for my part!

Now, I thought the fairest thing to do was to split the bill evenly since we both got to enjoy the deal. I politely mentioned this to Clara, but she got upset, saying she used her reward, so I should cover my own cost.

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It turned into a bit of a disagreement because I felt like I shouldn't have to fully pay just because she had a discount. She was adamant that her using the reward didn't mean she should split the bill.

It caused some tension between us, and we kind of left on a sour note. So AITA?