Do I not love my boyfriend anymore?

I totally do not know what to do right now. I've been in a relationship with this guy for almost two years now. I used to be crazy about him and was seriously planning on marrying him after I'm done school ( I just started my 2 years of 11 to become and orthopaedic doctor). He can be the sweetest guy in the world and then other times he can be the biggest ahole. We fight on occasion. Nothing i can't really deal with though. I just feel like lately I'm getting further and further away from him. He just got a new job working as a bank teller and is going to school to be an accountant. Neither of which I have any interest in...The one thing that kills me is he went through something that changed my life with me. I was in an accident in November of this last year. It was very serious and most of my doctors didn't think I was going to make it threw. I was flown to the trauma unit and was found to have all the bones in my face fractured, both the bones in my arm, and my pelvis in 4 places. There were also many issues after this such as pneumonia, urinary tract infection, and unknown origin of bleeding in my abdomen. Anyways, he has been there for me through everything. He stayed with me every single day at the hospital, and stayed with me at home when I couldn't walk for 2 months. I just feel like lately i'm not interested in his life at all, and I got my own life going on outside of our relationship. We really don't see eachother that much anymore either so that really changes things as well. I know i care about him and "love" him but i don't know if I'm IN LOVE with him anymore. He's very...idk anal i guess? He does not agree with breaks and stuff like that his mentality is "if you don't know if you want to be with me, then don't be with me at alll." I'm scared to lose him because he is so special to me, and he's always the first one I want to call when something happens in my life. What should I do?