Is this normal?

I recently got out of a relationship and when it comes to the idea of dating or love or anything like that, my mind completely shuts down and I feel repulsed by it. Even watching lovey dovey videos or reading stories have no affect on me. And the idea of talking to anyone new or just meeting new people is a big NO for me. I feel like my heart is cold and hard. I don't want to be like this but I was hurt really badly and I am completely turned off. Has anyone ever experienced this?? How can I get over it?