aww.. i'm sorry. I know what it's like to move to a whole town.. or a whole new state and feel so alone. I had to do it for my husband (he's in military).. and I know nobody. So it's really lonely, especially if the person you're with isn't being perfect. lol.. I've realized that you need to meet people and make friends and so that you don't depend on the other person to give you all the attention that you need. Because it's not fair to expect one person to replace everyone you once knew!
Your situation sounds very difficult. And I would say that you need to have a talk with him. Make sure you get your point across.. and tell him to put himself in your postion. What he is doing is not right. He shouldn't be hiding his phone or hiding anything from you, actually. You're in a relationship and in a relationship, you're supposed to be completely honest with the other person and open with them.
He is clearly showing signs of cheating. He's not being sexually interested in you, treating you like a mother or roommate, not a girlfriend--and he's hiding things from you. He's being way to defensive. You are NOT being paranoid, you're being smart. You realize something's wrong.
Let him know that he's always making you look like the bad guy and like everything's your fault.. tell him exactly how you feel. And tell him that if it continues, you're going to leave him.. because it's what you need to do.

It's not right for you to stick around when you're all alone and feeling like hell. That's not how a relationship is supposed to make you feel.

Talk to your family and friends at home, see if they can help you find a way home, or if you have a job, save some money for a plane ticket. You need to do something about your situation. You should not have to live with someone who treats you like that. You deserve better than that.

Good luck