signs he doesn't want to be with me anymore.

my "boyfriend" has been so distant. we've been together for over two years. he recently has been acting like he doesn't care about anything at all...
- he's starting to lie about small things. 
- he's careless about everything, and not just me 
- he saying things he doesn't mean. for example, saying he's going to text me later but ends up not. 
- he refuses to talk about EVERY issue i have about this 
- he's ignoring/avoiding me, doesn't even care to talk to me everyday 
- when he's with me it's like he's not even there
-he doesn't notice me anymore 
it seems as if he as a guilty conscious about something. or he just doesn't want anything to do with me. when i said that i don't like the person he's becoming he said "alright". i feel as if he uses me to get what he needs sometimes. i don't feel respected at all and he doesn't want to talk about anything that involves "feelings". he just doesn't care and i don't know what to do. and no... he isn't depressed. or sad. or anything. he just came up on a good new job and just bought a new car. he's happy. and i don't know what it is about me that's making him not happy with me.