You are not a quitter! And too bad if someone doesn't like you posting this. It is what is going on in your life and you need to have your voice heard and get some support. And yes, surviving the big D. After all, that is what you are doing.
I don't see dating as being the same as being married as in the commitment you may make. Dating is about discovering if you want to commit further. If you don't, then you should not have to be held to that. Better to find this out now then if you did commit to him and get married and end up here on the other side of the situation.