I don't know what to do

I been with this guy for over a year now and I am beginning to lose my feelings for him,
We wanted to get married and have babies but now I don't even know if I want to talk to him anymore,
It's makes me sad thinking that I might have wasted a year of my life and time on him, he still says he loves me and that he wants me, but I don't know if I want him anymore. I became a robot I just repeat the same scenario everyday!! I am pretty educated and smart I could have met someone else in that time but I made my life revolve around him and now I feel it's going to be over if he doesn't change.