Dumped

So, I've been dating this guy for almost a year, our relationship has been long distance the whole time. I was supposed to be moving in with him, over 2 weeks ago... he told me something came up and we needed to wait. I have had some bad feelings about the situation to the point I'm not sure if I should end the relationship or not. We talk less and he's been making excuses as to why, so there's even more distance. I've been in bad relationships befor, but at the same time I don't know if I'm being pushed away so I don't want to jump to conclusions. I don't know what to do, I'm really confused.