Need serious boyfriend advice. (Long)

Ok so I have been with my boyfriend for just a little over a year. And at the beginning it was amazing. We were so happy and I was so in love. We couldn't keep our hands off eachother. Things started to change over the summer and I developed anxiety and starting to have panic attacks when we would fight. Everytime we get in a fight he just doesn't seem to care. He never considers my feelings or try's to comfort me in any way. Lately I just feel like there is a lack of love between us. He just doesn't seem to try anymore. I initiate everything in our relationship and we barely have sex anymore. I feel like we are drifting apart and I'm not even sure what to do anymore. I don't  want to make any rash decisions when I'm emotional. But I'm seriously stuck. I love him but I don't think that I can sit here and say I'm head over heels in love... Which is what I'm searching for. He's also my first boyfriend (I'm 21) and I don't want to lose him. I just really don't know what to do.