I do prefer to only see someone once or twice a week. At a push I can do a third night very occasionally. And it has caused issues in previous relationships. I need a lot of time to myself. And I like to keep in touch with other friends either in person or via whatsapp or whatever. I'm sitting in the house alone tonight. In silence. I need that time.
That's not to say I would 'tolerate' what your boyfriend is doing if you feel that you are not a priority. If I am seeing someone, they are still a priority.
Like I've said previously, I'm currently in a LDR of a few months and it really does suit me to only see him for a weekend every 3 or 4 weeks. But you and the last man I had a relationship with would have an awful lot to talk about! He constantly felt that I didn't make enough time for him.
There were weeks when I saw him more than I really wanted to. Not because I didn't care about him or didn't want to be with him but because it ate into the time I need for myself. Yet it still wasn't enough for him. So still neither of us were happy.
You clearly have a very different relationship model and very different expectations to me - for example, I've not lived with several men! I like my own space and time to myself. Neither of us is right or wrong, just different.
Although I did read what you wrote about making yourself available to him for several nights before and after he went away. I agree with a previous poster about making yourself less available. Again, the man I spoke about before would make himself available to me pretty much permanently. He wouldn't make plans with anyone else in case I asked him if he wanted to do something. He dropped his hobbies, he dropped his friends... it was utterly suffocating.
If this man really does need time to himself, then give it to him. Don't make yourself permanently available to him.
However, if, as I suspect is the case, you are just not compatible, then I'd end it and move on.
I had a friend who tied herself up in knots for 3 years trying to make a relationship work. It made her ill. But she loved him and he was a lovely bloke... she did love him and he was a lovely bloke. They were just incompatible.
I'm tired now, I've had a hectic day. I hope this makes sense?
Bottom line is that if the relationship isn't making you happy, then end it. You can't change him to want what you want any more than he can change you to want what he wants.
And maybe he is just a dick.
But it's not working for you.