You are not a Get Refuser unless Bais Din orders you to and you refuse. The Talmud says that a Bad wife is more bitter than death. This maybe why the Rabbi advised you to divorce. Don’t do anything without thinking it through a few times as you are under a lot of stress.
You need to rethink why you want to remain married when your wife wants a divorce. Take a paper and pencil and every day for a week or longer, write a different reason why you think marriage is a better solution. You should also think about what life will be like after divorce? After the week review these reasons. This way you can respond to a marriage counselor or civil court judge if they ask you why you want to continue the marriage even though your wife wants a divorce.
Pray to Hashem that he grant you the strength and understanding to pass this test. Wishing you the best.