so i recently moved to a new school and ive this classmate lets call her leah so she TRIES to act like a TOPPER when shes clearly not like as the sir is going to give lecture on monday abt a topic she already studies that on sunday and tells the sir abt the topic we havent even studied and whenever the sir asks counter question to the WHOLE class she flips through her book and finds the answer to tell to sir just to make an image so there was this one time i was standing beside her and i stumbled towards her but my body didnt touch hers and she looked at me up and down and moved away from me INFRONT OF THE WHOLE CLASS fast forward to my exams it was our exams i dont study in class only in exams so after our results came out i got 96% and i secured 5th position meanwhile her she wasnt even in the top 10 and since the results came she has been so smiley towards me, asks me questions smilingly, sits beside me like- GURLLL plsss stoppp. And i also reply to her all smiley knowing how she is two-faced, so what should i do? should i continue this lovey act or dump her? any advice?