<human>: Give me the gist of the text in a nutshell

Hi. So, I am the boy 22 she is the girl 22. We are in a LDR for about 3 years and recently started getting very serious in the last year (plans of moving in and such in the near future). Anyways, being in a LDR, I believe that the key to a successful relationship is having a very strong sense of communication (we talk every single day). She agrees with this, although sometimes it seems to suffer for a short amount of time and we get back to being problem-less. 

She is currently abroad and being a 13 hour time difference, it gets hard to talk at times. I really didn't want her to go initially. I thought it would have been a good idea to get a summer place to try it out for 3 months or so. I eventually came to the fact that she wanted to go, I accepted it and tried to be happy. My main concern was the main problem we are having now. 

Whenever we do talk, it is typically for 20 minutes maybe twice a day (which is a huge shift from the hour or so we used to talk every night and texting through the day). She promised there wouldn't be any problems. Well now, whenever we do talk, there is almost always tension in the conversations. Within 2 minutes, I can tell how the conversation will go. It starts off with the typical how are you chit chat and then goes quiet. When I exat it is really hurting me without trying to feel controlling?press my concerns, it "frustrates" her which in terms pisses me off because she doesn't seem to do anything about it and then the conversation is ruined for the day. I try to be understanding, but she seems to not care and nothing has changed over the last 2 weeks. She will be there for another 2 months and is supposedly going to get better as she settles in. How do I get through to her that it is putting a hurt on me to feel like there is no contact without feeling controlling?
<bot>: LDR Girlfriend is abroad and is not communicating like she promised she would. How can I get through to her that this will be really difficult if things do not change?