I have a very dear friend, we've known each other for some years now and we are in the middle of a "quiet fight" (I'll explain later what I mean by quiet fight).
It is important to note that this person and I have come to conflicts before for similar reasons and we stopped communicating for a while because I didn't put up with her insults in front of mutual friends.
The reason of this fight:
Over the last few months I have devoted most of my time to a number of assigned projects from my university (apart from my courses), instead of communicating with her. The thing is that these projects are really important for me because they are crucial for my professional future, from filling a good CV to be able to show some practical experience, and even to get a job in a research lab at my university.
I can understand that with all this fuss about my university's obligations she misses me and wants us to spend more time together and communicate, but she does everything she can to hurt my feelings and make me feel guilty for a lot of other things except this. She claims not to be mad with me when I try to confront her about this but her attitude shows something different (the quiet fight I was talking about).
When she tried to talk to me about it the first time, she told me that she understands if I have other friends with whom I am spending my time but whatever it is I am doing is not normal. When I heard that it didn't make sense to me and obviously she didn't believe me when I tried to say sorry and to explain that I am trying very hard to do some extra work for my degree at the university. Since then she stopped talking to me and when I tried to reach out she started lecturing me about how I spend my time and stated that if I don't enjoy my life right now I surely won't feel happy when I have a job and a family.
Whenever I proposed to go for a walk or a coffee she always was unavailable, coincidentally. Moreover we have a dear mutual friend with whom I haven't talked about this very much and I can see that he only wants to get back together and hang out but recently seems to have picked my friend's side in all of this without asking my point of view at all.
Again I understand that with me devoting most of my time working and studying is difficult to hang out this period and even be frustrated.
How can I explain that her attitude and lack of understanding is hurting me and sometimes even insults me without offending her about her feelings?