Idk what to do

The only time I get my partners attention is when it comes to sex . any other time its like he's a zombie . not listening to a thing I say and also he's constantly passing out as in falling asleep . I can't even get one day of not having that happen . in all honesty I'm alone constantly . I have no one to talk to and when I say something about how I'm feeling; he says its fighting or arguing over stupid sh#t . sorry for the language . idk what to do . we have been together for 5 1/2 years and I've stayed whether I've been cheated on or just lied to constantly . what can I do to change this bc if it keeps going this way its not gonna work . here recently he said you can't have a kid anyways so why should we try . advice ????