I don't want kids

I just don't want kids at all. I'm tired of being told "you'll change your mind" or "wow that's selfish." Just because I have the ability to make a baby doesn't mean I have the instincts or want to have one. I feel like it would be even more selfish to bring a child into the world that I don't want. Kids are cute and mother child bonds are adorable, but I'm just not that kind of girl. I remember telling my mom at a younge age that I didn't want kids. Here's my problem. The love of my life wants them. Badly. He is pretty certain that we will. Even as much as I protest too it. He or I will bring it up, we argue a bit and then he dismisses it like it will happen. I feel like it's unfair to stay with him because kids are a big thing, but I love him, and I've made up my mind on this subject. I don't like hearing the excuse that I would be a great mom when I know I don't want to be...