Also on the physical side, when is the last time you guys got jiggy with it?
And if it has been a long drought, does he have health issues that prevent him from wanting to be with you?
Sounds like he travels alot, is it possible that he's seeing someone else and you don't know it?
He honestly takes for granted that you'll always be there, never mind giving him space, give yourself some space, take care of yourself, he obviously knows how to push your buttons.
When is the last time you guys spoke about your relationship and it's current status?
ILYBINILWY is often code for "I found someone new & exciting and you've lost your lustre in my point of view".
I'm not saying this is always the case but it happens more often than not to be coincidental.