How do I end things with my friends with benefits?

I've been trying to end things with my fwb. He doesn't call when he says he will and I make plans but then he doesn't show up or call me back. Its happened a few times in the past few days and I'm tired of it. I'm also tired of not being in a relationship. I want someone who actually cares about me. My fwb says he does but I think its a load of c*@p because he won't even ask me to be his girlfriend and he won't hang out with me unless were having . When I called to end it he made it seem like it was fine but then he called me like an hour later saying I was over reacting and that he wanted to come see me. He gave me a bunch of excuses, he did just get back into town, but he could have called to let me know he was changing his plans. I like for people to do what they say their going to do and not to go back on their words. I'm sick of this and I want to end it but I don't know how because he just keeps calling me and txting me when I end it giving me reasons untill I take him back. He said he would call me today. I txted him. Now I've heard nothing once more. This is stupid and I need to end it now.