Problem lies with me?

I've tried to have good relations with your mum, but problem is, she just dont accept it.

Its funny how you guys keep telling me, she treats me like her own daughter.

How can I believe it when its so obvious that she's doing things just for her son, her daughter-in-law and grandson, she just dont bother.

I'm not comparing, I'm just saying an example, recent haze, my mum went to queue for the mask N95. Gave to me and darren, she dont care if darren wears it or not, she just thought of the health for darren.

And darren's mum? She bought for darren those vitamins etc, I just told her I didnt want her to buy for me because I dont like to use her money too. And what she say was '' you want eat then eat, I dont want to buy then you outside eat other food etc." Her son also will outside eat other food too. Why must she make me feel like she's being so biased.

If like that she treat me, then I also can tell my mum dont give darren mask etc, dont need care for him anymore... Even the chinese medicine, my mum bought for him, he didnt eat etc, I also didnt say anything...

What Im saying is, if you dont wan buy for me, Im fine with it, you dont have to say such comments..
eg "later I buy, then you outside eat those junk food"
your son also will eat junk food, you still buy for him?

Problem lies with who?