It would help to know what changed in ten months and why you married a non-Chrsitian in the first place. It seems strange that two people can want to get married and then not want to be married ten months later. I agree that having the discussion others have mentioned would be a good start, but if that doesn't do it, I would talk to your pastor and get his advice, or see a marriage counselor the two of you can agree on.
Like it or not, for the right reasons or wrong, you did make a commitment. You must have had a reason. Try to remember what it was and what changed. If you married for all the wrong reasons, and talking it out doesn't help, then separation is better than living together in hate. But you need more help than can be obtained here. Did you read my hub on this situation?