How do i get him back..!!??!?

I had this bf we broke up today and he wasnt telling me that he got together with his ex who black and has pimples and has a huge head where im white i have brownish and blondish hair and i wear gles so how do i get him back that girl is mean she made me breakup with me bf and i want revenge from her buh i also want my bf back so what shud i do...?!!