It's true that it may be a disadvantage for you to get less percentage while sharing the family assets(but not only the house) during divorce case if you leave the house while having no justified reasons. For instance to leave home to flirt with another woman or to leave for keeping away from your obligations as the male part of the marriage. But as well as I understood from your message, you want to leave home just for avoiding any arguments with your wife(whom you have already agreed on divorcing). I recommend you to keep staying with your family until recieving the divorce decision of the court. But if the unhappiness and the arguments with your wife have begun to be unbearable, it means that the marriage has already been ended though it's formally still in force on the paper. The judge will probably consider that you had a justifiable reason to leave the house in the court.

Please don't hesitate to ask again if you still have questions or if you aren't satisfied with my answers.

Best wishes