Is my girl friend is lesbian please give me advice how i get her heart and make her my girlfriend?

i have a girl friend i think she is lesbian she wear clothes like boys she didnt do make up i bring clothes for her she never wear during forplay sex she give me punish ment sex after she say she wana sleep she think she is a boy. she never have feelings about sex when i touch her she never feel. she also didnt french kiss with me. please give me advice what i do in this situation how i get her heart if she is lesbian what i do what is the proper way i chose she didnt care me she happy with her friends she happy to go out with them not with me please any one help where is she going how to solve this issue???????????????