couple issues

Question: Hi! I have been in a relationship with my girlfriend for the last four years. But we have been facing some serious issues recently. I live in Germany and will be here for the next three years due to work. Our problem started when I could not give her enough time, which has made her believe that my behaviour towards her has changed. She is angry most of the time and talks to me very rudely. As a result of this, I too get angry and we end up fighting. Now she has been facing problems like anxiety and stress. She even blames me for this and says she cannot focus on her work because of me. She has told me to leave her alone for some time and I don’t know till when. She has even forbidden me from talking to her. We are planning to get married in three years after I return from Germany. Deep inside we both know that we need each other but because of this situation, we are not able to communicate right now. I am really stressed and I don’t know how to proceed. How can I support her? What changes should I make in myself to make her happy? How can I get her back? Your suggestions will be helpful. Thanks in advance. —By Anonymous