<human>: Hello, please excuse the throwaway as many of my friends know my username.  
I have been dating my boyfriend, "K," for about a year now.  I love him, his family, and I think we are a great match.  
However, things have gotten difficult recently as both of us are still in school and we live about 4 hours apart.  I am in medical school and K is working on his bachelors degree.  
I'm feeling really frustrated in that I am now at a point in my education where I need to spend a lot of time and focus on it, as well as having a demanding schedule. I am not free as often as I once was when my program was only academic and not mixed with clinical responsibilities.  
This means I am not as free to travel as I once was. In addition, my family also lives in the same area as K, so it becomes more difficult to balance seeing everyone when I am able to be home. This can sometimes be a point of contention.   
K is going to be busy this next year meeting requirements and has told me that he won't be able to come visit as often. Our relationship is already strained from lack of visits. 
I also feel that K puts all the responsibility for communication on me. He never initiates phone calls "because you have the busier schedule." If I didn't call/text we wouldn't talk for days. This is extremely frustrating and exhausting to have to carry the the whole relationship on my shoulders.  
He also doesn't want to be friends with my friends from school and will actively ignore them if they try to speak with/engage him in conversation. I know he is introverted, and I don't ask for a ton of socializing from him. This particular instance was at a surprise party for my birthday.  
I feel like there are more things I could say, but this has already become a rambling wall of text.  Any help in communicating in a LDR would be appreciated. This is my first attempt at one, and I am starting to think that I am bad at them and shouldn't do them. Thanks!

Can you condense the text into three sentences or less?
<bot>: LDR communication issues-both of us are busy and I feel guilty for being a shitty girlfriend and communicator. Help!