Need to find happiness in my marriage

So I have been married 18 months and the day after my wedding everything changed there has been very little affection at all. No kisses and cuddles unless he wants something else. He used to do nice things for me that all stopped. We used to be a team with everything now I feel almost everything is on me. We seem to be so unhappy and don't communicate, I asked for marriage counselling and he said no. I want things to improve but I don't know how.