Different

All the sudden it seems like my boyfriend just doesn't care anymore. Like yesterday we were in books a million and other places and not once did he try to hold my hand or kiss me like he normally does he kissed me once and that was during sex. Now I just feel like that's the only thing we're good at. And I feel like he does all the talking because when I talk it's not as interesting to him...so why bother. What should I do I feel like I'm still in love with him. And that's the other thing he told me he loved me for the first time about a week ago and hasn't said it again since. And he said while we were having sex. I feel used and that's when things started to change...maybe I'm just crazy. Sorry this is so long I just need some advice please !!!