It sounds like his hearts not really in it. That's not necessarily a reflection on you or the relationship, it could be as others have pointed out that he's depressed and is struggling to find some sort of balance with you, work, friends etc.
You've made your feelings clear to him, if he cares anything for you or the relationship then he'll want to sort things out. If he doesn't then you know where you stand & it's time to move on. It's a cruel way to find out the truth , believe me I've been there but it's better to know, than to waste any more of your time & love on a relationship that's not going anywhere.
Hope it all goes well for you Lou.