If you don't like someone's body and looks, no one forced you to date them, but you can keep your opinion to yourself. 🙃
I'm a size M/ UK10, 132 pounds (5'6 height), have a normal body fat percentage, have a 0.7 waist-hip ratio, which is an indicator of health. Just because I don't look like a model, or am not an XS, doesn't make me fat.