Definition: Given a real-life anecdote of a complex ethical situation, judge whether or not a specific person is wrong here. Answer 'not answerable' if more information is required and 'answerable' if all the information is sufficient to answer who is wrong in this situation.
Input: So I'm 21F in my third year of med school and the friend in question (Nat) is in his fifth year. Nat is a foreign student from Benin and is very intelligent, he is almost 19 and in his fifth year out of six so he skipped quite a few levels. We became very good friends last year because I had some trouble getting into the groove of studying and he helped me out a lot. Over time I befriended some of his classmates.

So last semester Nat failed his first exam here. I've failed before and its devastating, but you get two chances to rewrite and that helps you in the long run in my opinion, because the learning material is a but fresher in your mind. I didn't find out til the weekend before he was supposed to write, but when I did I played him a visit. He seemed really down and was seriously doubting his ability to pass and stay in the school. I spent several hours consoling him before I had to leave. 

That same weekend my class left for a four week community posting in a rural area with awful connection, I had to walk several kilometers to make my calls. I tried to call him everytime I went which was at least twice a week. He wouldn't know the results til we came back and was seriously stressing over it. Sometimes we would talk about it and sometimes we would joke, but he wasn't his normal self. 

After two weeks he stopped answering my calls and wouldn't respond to my texts. Because of the mood he was in I was concerned, so when we got back to school another two weeks later I stopped by his room but he wasn't there. One of his good friends told me he went to stay with his host family a bit, so I let him know to tell Nat to contact me when he had the chance.

Nat eventually got back to me about a week later and I let him know I asked his friend to tell him to contact me because I hadn't heard from him in a while. He got really angry with me and said I betrayed him by going to his friend. He said that I could always talk to him directly and that he's disappointed I didn't try harder. 

I see no betrayal in this. If he won't answer my class or texts and I'm worried about his mental health what am I supposed to do? I told him that but he kept focusing on how I didn't care enough to come to him directly. I realised it was no use arguing with him and apologised. This happened three weeks ago and we haven't spoken since, I'm still worried about him but idk if I really did something wrong. 

So, AITA?
Output:
answerable