Problem with my girl

I met a girl in online, we chatted a lot and we are in two different countries, and two different cultures, it's been three years from now in relationship in online chatting, we met three times physically but no sex, both side parents know about our relationship, we are planning to get married also, but recently we both have lot of problems in understanding when we chat, we don't have other option to meet personally as we stay in different countries, she used to give lift to other men, and she told me that when we chat, i told her i don't like it, after the incident problems start as i remember,but sometime she used to talk very nice, when we start chatting it always end up with some problem, recently my immigration file rejected!!, every time i ask here to marry me so that i will get PR to stay in her country but she say i will marry you but after 1 years, now already passed three years, when i ask her again, she used to say it will take 3 more years, i dunno, what she mean ??, as i stay in different country we couldn't able to talk face to face and their parents will say apply for immigration but they are good, they applied or me immigration but its rejected, now my age already 30, i dunno what to do, can i end this relation?? or go for immigration, i know its too late, kindly help me in this.