I have a girl friend, v r like made for eachother, but my parents are looking out for a girl. vot do i do?

I love my girl a lot. she is my Sweetheart... I juz cannot miss here. same goes with mom aswell. She'z pretty old and doesnt believes in intercaste marriage. my girl says she would kill herself if she miss me. I want sum time to talk at home. vot am i to do now??? ? i waana convince my mom vich will take some time....