Why doesn’t he want me?

As we all do, he has his priorities. Maybe his priorities are entirely sensible since he needs to work the hours he does in order to survive or achieve huge goals in his life. Or maybe he's just keeping you hanging around in the hope you'll be there whenever he can be bothered to take a break and meet up with you. The important thing is that it seems pretty clear he can't or won't make time in his life for you at the moment. I think you need to accept that fact, no matter how much it may hurt you.

What your posts portray is someone who needs clarity and regular, predictable attention from a boyfriend. Those aren't unreasonable things to ask for, but it seems pretty clear you're not going to get them from this guy.

For the sake of your self-respect, I suggest you tell him that things aren't working out and draw a line under all this. Whatever you may believe at the moment, he is not the one and only guy in the entire world whom you could be happy with.

Don't be shocked if you encounter him in ten or twenty years and discover that he looks back on this stage of his life and wishes he spent more time living rather than constantly working. But that's his lesson to learn. I think you need to learn how to let hopeless causes go.

Some people do not have time for a relationship.
The only thing you can do is to move on to someone who does have time.

Sounds like this guy is being honest - he clearly is interested from everything that you've said.

The proof will come when his house is sorted and he claims he will have more time. And even if he still continues to work a lot, that doesn't mean he doesn't like you, he might just need the money for some other thing or be a natural workoholic. Some people are just wired that way

Take him at his word until his actions prove otherwise. I think he's a very hardworking, and motivated young man. Try not to be too insecure. He probably doesn't text you very often, because he doesn't want to be distracted at his work.