Relationship awful cycle

I'm only in my 20's and have a lot to learn about relationships but right now I'm stuck and could use some advice. My girlfriend and I have been together for over a year, we moved provinces together, I can only speak for myself in this relationship but I feel like we ignored some issues and I've tried a million ways of solving them, but she walks away from every issue and is impossible to communicate with, I almost feel like I'm fooling myself and am in a relationship that is going no where and I can't see it. So I could use some insight on that. The issues we have are; We don't have sex (before the excuse was we were too busy, now she says it's because she doesn't think i'm attracted to her...) I'm not a huge party person and she used to be, I feel like she pretends to not be, but every time I turn my back shes making plans to get shit faced.. thats not the type of life I want, and every time I approach her about it, I get blamed for "always making a big deal out of things" she treats me like a buddy.. doesn't act romantic. She's an extremely funny person and when she's not being a boarded up person she actually cares. But all the other things are making this relationship hard for me to understand at all, and I need understanding. To be fair I'm not a perfect person myself, I have HUGE trust issues because 90% of the people I know or have dated can't stay monogamous, and it's put me in a position to believe anyone I'm with isn't capable of sticking to me, or worse.. wont have the guts to leave me before they cheat. I don't voice most of those concerning thoughts because I know its just jealousy that doesn't have much evidence. So yes.. that flaw makes me have issues too, but the difference is, I try. I try to rise above it, and communicate about it, try to show a way to understand why i am the way I am, and I get nothing like that and always feel like I never get answers.. and it's a vicious cycle. We get in a fight - she walks away - I don't know what to do - so I put on a smile and pretend like nothing happened since she wont give me anything to make me feel like we can resolve it. - then it builds up and happens again. I just don't know how much longer I can deal with it.. or maybe I am missing some big picture someone can help me see. Advice?

Hi, sorry things aren't going well. I'm female, married 24 yrs. In my experience, this relationship is not going anywhere. I'm sorry to be blunt, but you should move on. Love is not enough to make a relationship work. I found out the hard way. You don't communicate the same way, you don't share the same interests, same goals, and are filled with confusion. It's important to feel like you can be honest, speak your mind (kindly), enjoy the same things, and just be comfortable. Keep looking, although relationships are work, shouldn't be that hard.