Dating

Radio silence for almost 2 weeks. What is going on?

There's this guy I have a thing with ( not quite a relationship because he's from another city so we didn't label it). We have amazing chemistry and I fell for him. I felt like I trusted him completely and the feelings seemed to be mutual. The thing is, he's acting really strange lately. I know his work schedule is really messed up and when he has night shifts he's really moody and doesn't have much time for me and I totally get it and support him. But he usually always sends me a text in which he says he misses me and he's tired or something like that, just so I can know he's ok and we are still in touch troughout the day.
However, suddenly he just stopped talking to me whatsoever. Our last normal conversation was when he told me that this night shift is really changing him and that he doesn't want to deal with people when he's like that. After that, I kept sending him texts asking if he was okay, and he just read them the next day and never responded. I kept insisting but then I felt stupid and told myself I would leave him alone until he wanted to talk to me. Complete radio silence for almost 2 weeks. I am confused, angry, hurt, and feel really uneasy. A part of me wants to ask him once again what is wrong, another part wants to see when he comes to me, and one is telling me that this is his way of telling me goodbye. I don't know what to do, some advice would be really helpful. Thank you
Radio silence for almost 2 weeks. What is going on?
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