AITA for wanting to eat healthy food?

I (2y 3 months, f) LOVE grapes. Imagine how much you like your favourite food and then double it and that's how much I love grapes. There is almost no time of the day that cannot be improved with rhe addition of grapes. Some nights I even take grapes to bed. And honestly, I think everyone should be impressed with how seriously I take my commitment to eating my fruit.

Mummy (super old) has always seemed cool with this, even on the weeks where we've had to make multiple trips to the shops to get grapes to make sure we never run out. But recently she has started talking nonsense. She told me that it's winter now and that means grapes are 'out of season'. But then we went to the shops and saw grapes anyway so I just figured she got confused and demanded grapes like normal. Except then mummy started muttering about buying "expensive imported" grapes and "betraying all her ethical principles by buying grapes that have had to travel halfway around the world" which honestly is just so silly. Obviously the grapes are in the shop for people to buy and that means we should buy them and I should keep eating grapes 5 times a day.

Now mummy says she has given in because she doesn't want to deal with the meltdown if we dont have grapes in the house (which is a very over dramatic way to describe the gentle screaming i do when I need to let her know about my displeasure at a situation). But I'm just trying to keep up my 5 a day, so surely I should be commended for my commitment to health eating?. AITA?