So I have a crush

Ok so I have a crush on this boy in my grade he is really cute and my bff is good friends with him and she said he will not stop saying I am obsessed with him and. I know he has a girlfriend form his old school but in class I over heard him saying he. Likes a girl in my class and she know and she is complaining that he likes her and idk what to do bc he told me not to talk to him and. My friend other then a few. And. Idk how to deal with it please leave ideas in the comments