My best friend is one of the most gorgeous people on the earth, yet she obviously doesn't realize it (yet at one time seven guys liked her). She's a notorious flirt, and hurt one of our friend's feelings by leading him on, not realizing it. She began to text someone I like, who now wants to ask her out. I looked at their text messages once, and she was (unknowingly) hardcore flirting with him (asking him about his kinks, telling him what turns her on). It's infuriating because she refuses to accept that she's battered several people's feelings by her flirting, including mine.