I had a "friend" like that, she would tell me all kind of stuff about my features that looked bad or strange to her, like that I have wiener fingers xD, I stopped painting my nails after she told me that and got very insecure, I always had long nails and painted them red. Well, eventually it turned out she had an affair with my then boyfriend. She'd tell me he's ugly too and shamed me for being with him. 🤷‍♀️ Lesson learned lol.