Relationship advice..

Okay so I've been on and off with my girlfriend for about 3 years now, we're a lesbian relationship and got back together properly in august 16'. Since then, we have been fine, odd couple of arguments every now and again, like every relationship, but nothing serious. Recently we've been arguing about anything and everything, nothing I seem to do is right. If I ask her to pass me something (such as the tv remote) she moans or will make a sarcastic comment about how lazy I am or that she's fed up of doing everything for me (when she actually doesnt) I feel like I can't ask anything of her anymore without it causing a heated debate. Yesterday, I was rushed to hospital, through out the whole time we were there she moaned about this was messing her sleeping pattern up- and she never gets any sleep at night anyway because of me. She snores at night, so throughout the night I'm asking her to be quiet and stop snoring. She won't go to the doctors and keeps making excuses, she'd rather one of us sleep in the spare room, and I don't want our relationship to come to that! I saw messages on her phone of her texting her friend, they were really rude and kinda make me feel like a horrible person. She was saying how I was 'attention seeking' the previous night and I did it on purpose so she had no sleep and how she's sick of my crap, it seems like she really runs me down to her friends but doesn't actually say any of this to my face. When I approached her about it, she went mad at me for checking her phone, when she was the one that left it on the side with the chat conversation open! & how she feels she can't talk to me incase I kick off. She never talks to me about anything- only if its affecting HER. Is she two faced? We're meant to be getting our own place soon and I'm really worried that it's not gonna work out as I'm moving halfway across the country to be with her 😞 I love her deeply but I can't talk to her about anything anymore, it feels like she is emotionally unavailable or if I attempt to talk to her she will just nod like a robot and agree to everything I say (when the case is, she's not actually listening)