OP, you sound fab. Not the least bit needy, just practical and realistic.
This relationship is bullshit.
Super convenient for him on so many levels it makes my head spin.
I have known and worked with so many men like this for well over a decade, and know how the think, behave, and how they ALWAYS value THEIR freedom of movement, above ANYTHING else.
He is all of the things you say, but you will NEVER be his priority.
You will Never have his full attention.
You will Always be waiting round for him.
Cut your losses and move on...
The whole house thing tells you everything...
He will be very generous but absolutely will NOT want to formalise anything.
These guys travel very light, and don't leave much around after them.
They ADORE their freedom above all else.
They actually have a real vanity attached to it, and see themselves as a real rolling stone
...and the truth is they are great company, light and easy, great raconteurs.....
Super fun if you are looking for an intercontinental fwb and absolutely no commitment.
Run for the hills, enjoy the memories and don't spend the next few valuable years waiting around for him...believe me you will be waiting....until he moves on.