Okay... update from me.
Spent all day yesterday fighting / breaking up with him (my instigation) over text. He kept insisting that he really was sick on Sunday. Eventually we had a really long phone convo and, much to my surprise, he ended up convincing me to give things another chance. He convinced me that it's just been a really bad three weeks for him, and he wasnt avoiding me. He said he's really missed me, how much I mean to him, and he's felt how it has impacted his mood not being with me. So I said let's give things a chance til Christmas... I told him that he needs to make more effort and we need to see each other 2-3 times a week. He completely agreed.
It was a really honest conversation. He told me that he doesnt view this as a boyfriend-girlfriend thing yet. He said it takes him a long time to get to that point, but that we are definitely heading there, and that he see us together in a year's time, which scares him, because that's when I'm planning to move to the States, but he doesnt see us breaking up before then (at this point I had to remind him I had dumped him earlier that day. We laughed).
I realised that I have been way more invested in this relationship than he has been. We came from very different backgrounds - before him I literally hadnt been with anyone in 2.5 years, whereas he was just about of a relationship. We both felt the amazing connection, but getting involved was a way bigger deal for me than him, and that made things very unequal. For me the situation has been life and death... for him it's been romance.
I've been stupid... accepting dates with him at the drop of a hat, not asking him to do anything for me, and being so terrified that he would leave me that I would be an exaggeration of myself. I've been obsessed with him, and thankfully since all this I feel liberated, because I know I can walk away.