Would you or did you cancel plans with someone, just cause some "better" plans came up?

Yesterday night a let's say new friend asked me if we wanna hang out today and get some ice cream and enjoy the weather. I agreed and said yes, he is even on his way right now and I'm just waiting for him lol

Anyways a hour earlier another friend invited me to go to the pool with her and her boyfriend and honestly that does sound really good, I would have loved to but I declined, I would never ditch someone! I don't do that.
But my mom was like "whyy, no call him and say you don't have time anymore!" and so she and i started arguing and she was definitely not on my side lol but I feel like, if you agree to plans with someone, it's like a promise and I don't like to break my promises, you know...

Sooo that's why this question
Would you or did you cancel plans with someone, just cause some "better" plans came up?
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