Not understand why

My MIL likes to commented things I bought and food I bought. So far, in my record, she seem never ever praise me for the things/food I bought. I know I don't need her to agree on everything I do or my purchase items, but at least don't come and tell me: this thing u buy one, not nice at all ler! How come u still buy it? S*it! I buy mean I like, if you dislike, just don't take or eat it. Even u want to try, later pls don't comment something which I dislike to hear too! At least say something like this: this one not suit my taste ler...bla bla bla....rather than commented NOT NICE AT ALL!