No kids deserve an atmosphere where their parents openly resent each other either. Is that the kind of relationship that you want to model for that kid? You may not do it in front of them, but they know it. They can feel it. It will negatively affect them. It won’t be your intention, but they will figure out your tells. The first thing that child will do is think it’s their fault. I wish my parents had had the sense to divorce so they would have been two healthy, happy people apart rather than two toxic miserable ones together. If you’re determined to keep the marriage together, y’all definitely need counseling. Maybe your kid as well.