boyfriend troubles.. Advice??

Me and my boyfriend have been together two years now and it's been well but lately I've been so depressed he doesn't seem to care and tells me to just get out and do things but doesn't realize how hard it is also He wants sex all the time and I never do but end up giving in just so I don't have to hear it but last night when I didn't he got so pissed at me. It's like it's always about him and what he wants & I just have to deal with it. I want to move eventually and start a life in a warmer state down south he doesn't so we have to stay. I was looking at getting a dog to help and get me out & take for walks but he doesn't want one so we can't get one. Any advice would be great:(