Is this a valid reason to cut a friend off?

My “best friend” constantly makes jokes about my weight even though I’m only 30 pounds heavier than her. She’s said countless things in the past but I think this is the final straw. She refers to me as the fat friend. Once even asked me how I wiped my ass because I was bigger than her. I said I got two protein powders and she said the flavors I got were for big fat and nasty girls. They were vanilla and salted caramel. Then she went and bought the same flavors. I mentioned my weight lost and she changes the topic back to herself every time. I am in the process of losing weight. I’ve lost 25lbs so far and I have 50lb more to lose.
Is this a valid reason to cut a friend off?
Is this a valid reason to cut a friend off?
Is this a valid reason to cut a friend off?
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