Rating System for Sellers Sucks

Long story short, this lady messaged me with an offer and I said I would consider it. Then I received another, higher off and sold the item. Because I had talked to the first lady, it allowed her to leave a review. She got upset and left me 1 star. This kind of shit really pisses me off...Anyone else deal with this BS? Facebook honestly sucks. I sometimes wish we were back in the lethargic Craigslist's days.