Me and my best friend, C had planned to get the train back home from university together and also to go to my first tattoo appointment together 2 days later. However we got into a spat whilst travelling home and now he's refusing to apologise since I went to the appointment without him.

On the first train of the journey home we sat together, but one stop away from being at that train's destination, he wanted to swap seats because he was in the sun. I was reading and I had quite a bit of luggage with me so I suggested that he simply put the blind down (it was a fancy train with blinds on each individual window) so he wouldn't be in the sun and we wouldn't have to move. But he insisted that we move to the side that didn't have the sun on it even though we didn't have long left on the train. I said I wasn't going to move since I didn't see much point or why he didn't just put the blind down, but he did move. The seat he moved to was another table seat (we were already sat at a table seat) on the other side of the isle of the train that was right next to the one we were sat at, so I really didn't see the point in me moving too since I was fine with the sun and the train was practically empty.

When we got off of the train and were heading to the next one we had to catch (London underground), he sped ahead and didn't talk to me. I tried my best to keep up because I didn't understand why he was walking ahead so fast. I managed to keep up and sat next to him on the tube, we didn't talk on the tube because of -at least from my perspective- tube etiquette. Then when we got off of the tube he once again sped off without any care as to whether I was following, and at this point I understood that I'd annoyed him by not moving 2 seats over on the first train. I once again managed to catch up to him and he was sitting at a bench, so I sat with him hoping to be able to resolve the issue, but soon after I sat down and sorted out my luggage, he got up and walked off again without saying anything.

Its probably worth mentioning that I have a tough time with confrontation and conflict in general, probably due to being a massive introvert and having previous bad experiences of being ignored/dismissed when expressing my feelings, and as a result my attempts at confrontation and/or conflict resolution can be seen as quite passive aggressive and I recognise that.

After he walked away for the 3rd time without talking to me, I decided that if he wasn't going to talk to me then I wasn't going to talk to him and waited for the next train on my own. When the time to get on the train came around I saw him go through the gates and walk down to get on the train, I had half the mind to try and catch up to him and talk to him again but the queues at the gates decided for me and I didn't see where he had gotten on the train. I got onto the train and sat on my own. a few minutes before the train would leave he did text me asking if I was on the train and I replied with a short response to try and convey that I was irritated that he'd been so petty as to ditch me on our way back when we'd planned to go together over me not moving to a seat that was less than a metre away on the 1st train.

I didn't text him for a week and I went to my tattoo appointment without him because I was still mad that he hadn't apologised for ditching me over such a stupid reason. He only texted me a week after it happened because I agreed to hanging out with him and our mutual best friend from home (organised by the best friend from home). He basically just asked "why would you agree to a hangout when you haven't talked to me in a week" and I replied "because I've missed you and mutual friend". This led to a conversation about the argument and about how he was mad that I went to the tattoo appointment without him.

Essentially he's mad that he had to initiate the conversation about the argument, that I didn't move seat, and that I went to the appointment without him, but I'm mad that he didn't just talk to me to begin with, instead walking away from me 3 times, that he ditched me for the last train back and the fact that he's now refusing to apologise for ditching me because he had to initiate the conversation.

AITAH???