fake friend mean girl

today i was in my professional communication class and i was sitting with two of my friends (one boy, one girl). for a while, ive gotten the feeling that the girl doesnt like me. shes always trying to exclude me and will made snarky little remarks here and there. today in class, our guy friend said something kind of rude, but followed it up with "my bad it was just a joke" which is typical for him. the girl (who its obvious has a huge crush on him) said "oh so you can just say whatever as long as you say its a joke?" and then she pauses, looks at me, and goes "Molly youre so ugly and i hate you...............just joking haha!" like in between that she paused for like a good 2 or three seconds and just looked at me. it was so thinly veiled too like idk what her problem is. genuinely what are we doing. shes so mean to me all the time, especially around that guy. ive literally been nothing but nice to her