Just confused

Well i have a crush on this guy and he said he loved me and more stuff like that and now he like flitting with more and more girls and he thinks i will still love him if he dose that but its so hard and im trying to forget him and he wont stop texting me saying i love u and im like watever im just so confused and tired and he flits with the girl that i hate dislike and that is just so confused and i dont even want to school now cuz of this