Am I in the wrong?

I've posted some baby clothes for sale on Offer Up. This girl has been messaging me for 3 days trying to haggle with me over the price of these clothes. Now, I told her the lowest I would go is $1.50 per item, which is less than I originally asked for. They're all name brand items, too. Most of them have never been worn. I told her if she couldn't pay that, then I'm sorry I can't help her but I hopes she has a blessed day. She sends me a message back saying how rude I am, and that I'm looking down on her & she doesn't have anything but $13 to her name. In the sob stories she's told me so far, she said she was going out of town today for 2 weeks & she gets paid tomorrow. Then she said she gets paid Friday. First she said she had $100, she just said the $13 thing. I told her once again, I'm sorry but I can't help her & I hope she has a blessed day. Now she's harassing me sending me messages over & over again. I don't know how to block on Offer Up, or I would have done that already. If anyone knows, please tell me how lol. But am I wrong for this? I mean honestly, should I just give away Polo clothes at $0.50 per piece that haven't even been worn? The way her story has now changed, I'm not going to sell anything to her, of course because she sounds so sketch.

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