How long were you dating/together before it became long distance? If he moved and is starting a new job and getting settled into his new place a bit of flakyness is forgivable, he has a lot on his plate. But if he’s starting to do the slow fade with the communication something could be up. Has he met someone new? Is the distance getting to him where he’s wanting to break things off? You don’t know cause he won’t call you 😬
Unless there is a solid plan to get both of you living in the same place, ld doesn’t pan out ime.