anxious attachment

i just need to tell it to somebody. I've seen this guy twice. he moved to a different city. he started replying to me very rarely and usually in the evening. after the first time he didn't reply for the whole day I sent him a message saying that he could've told me he didn't want to continue it. he said he was busy with moving and I know we was also busy with work. he said that he wanted something serious (i said before that i didn't) and wanted to meet again multiple times but never set a date. then, once we were about to meet we miscommunicated and he thought I wanted to cancel and was mad at me for the miscommunication. later, we talked about it (because I apologised, he didn't reach out) and I suggested 2 dates for meetings. he said he would let me know if he could meet on these days. so the first day afterwards I was fine but on the second one I texted him asking how about our meeting and after not getting a response I asked if something was wrong and soon after said that I felt like something was wrong and that I wanted to tell him that I also wanted something more. (I felt like something was wrong because I didn't expected him to be mad at me before for the miscommunication so I thought that I again did something wrong.) he said he was open to the idea but how could it work long distance. I wanted to call him the next day, he agreed to do it, but when I asked about a specific time when I could call he didn't answer and didn't answer my call the next day. I think he was fed up with my anxious messages and the miscommunication and also couldn't be bothered because of his new busy life in a new city. but it hurts because I feel like if I didn't assume that something was wrong maybe we could still be talking. of course, the connection could fade anyways, but I feel like I caused it because I couldn't wait for his reply. in the beginning I was normal and chill and later I ruined it by being too anxious. I can't bear thinking about this change in my behaviour. if it were meant to fade it would fade but the fact that I contributed to the ending in this way bothers me a lot.