Unhappy marriage??

My husband and I used to get along great. We were best friends. Now, a year after being married, we fight almost every single night. This all started about two months ago. He is constantly on his phone. Whenever I try to talk to him he doesnt acknowledge me, or just says "uh huh" "yeah". When we are together, we arent really "together". We dont interact with one another. He just sits and stares at his phone or calls people, works, etc. We are not intimate anymore either. I brought this up to him and he says that I am naive to think that we would have a happy perfect marriage. He will not take my feelings into consideration. Instead, he just continues to hurt me with his words and actions. I love my husband very much and I miss him, but I am tired of crying myself to sleep every night. What do I do.?