Ghost boyfriend

My boyfriend and I have been together for almost five years and for the last two years he just... hasn't cared. I've had to initiate basically every single time we've talked except every once in a while and every once in a while is quite a few months apart. So the other day I was try so so sooo hard to talk with him. I kept asking how he was, how his day had been, how work had been, how his coworkers are, how his mother is doing... I tried for three hours to talk to him. He was leaving me on delivered for 20 minutes each time and responding with things like "yeah" and "fine ig" at one point I just said all right and he went "yep" so I got pissed and went to bed. Every morning I always text him good morning, he'll text back mid afternoon, and we go from there. I decided that day to see if he would even text me if I didn't text him first. Its been three days since then and he's said nothing. He's been online, I can see on Discord that he's online basically all day (I'm not checking on him I'm talking with other friends and happen to see it) and still... nothing. We're in a long distance relationship so its not like I can physically check in on him and he never introduced me to his friends so I can't ask them so... where do I go from here?