Don't know what to do. Help😞

My boyfriend and I were so In love. We spent every second together and we loved it. I know that once you get past the butterfly stage it slows down but I just don't get it. It's like now everytime I want to hang out he's "too busy". I see him everyday at school, I'm a junior he's a senior. But it just feels so different. Yes we are sexually active. He just never wants to be with me anymore. I do live out in the middle of the woods so it is a longer drive but that never stopped him before. And I deserve to be treated like I'm worth something. I'm not just a cigarette break he can take when he wants, but I love him so much. I've given him everything.... Please give me advice...😞