Is it normal to feel its not working anymore

Earlier me and my boyfriend were in same class. We used to have great time back then. He used to get restless whenever he didn't used to find me in class. Even after class we used to spend hell lot of time together. we used to hangout together like a regular couple. But after the semester break, We are now in different section and he doesn't seem the same person anymore. He don't have same urge like he had earlier. He never ask me out or never come up to meet when I ask him to. We fight a lot. Even I said we should break up but then he don't want that either. He says he loves me more than anybody but its just I don't feel it anymore if he really does. I really tried to find out what's the actual reason behind this drastic change but he don't give me anything. I'm just so confused these days if he really loves me or not because it is just so frustrating if u r giving your cent percent and you're not getting not even half in return. What's the deal i don't get it. He's not like that he can't have someone prettier than me or he is so physically involved. He is not making much effort not even stepping back and leaving me in dilemma in return. I don't know if IT IS NORMAL to feel so?